15155032212 has 144 divisors (see below), whose sum is σ = 41726700288. Its totient is φ = 4624688640.

The previous prime is 15155032183. The next prime is 15155032231. The reversal of 15155032212 is 21223055151.

15155032212 is a `hidden beast` number, since 151 + 5 + 503 + 2 + 2 + 1 + 2 = 666.

15155032212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×15155032212² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1795033 + ... + 1803455.

It is an arithmetic number, because the mean of its divisors is an integer number (289768752).

Almost surely, 2^15155032212 is an apocalyptic number.

15155032212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15155032212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20863350144).

15155032212 is an abundant number, since it is smaller than the sum of its proper divisors (26571668076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15155032212 is a wasteful number, since it uses less digits than its factorization.

15155032212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8550 (or 8545 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

Adding to 15155032212 its reverse (21223055151), we get a palindrome (36378087363).

The spelling of 15155032212 in words is "fifteen billion, one hundred fifty-five million, thirty-two thousand, two hundred twelve".