15541300212 has 48 divisors (see below), whose sum is σ = 36897094080. Its totient is φ = 5089946368.

The previous prime is 15541300199. The next prime is 15541300213. The reversal of 15541300212 is 21200314551.

It is a happy number.

It is a super-2 number, since 2×15541300212² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15541300213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1689658 + ... + 1698830.

It is an arithmetic number, because the mean of its divisors is an integer number (768689460).

Almost surely, 2^15541300212 is an apocalyptic number.

15541300212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15541300212 is an abundant number, since it is smaller than the sum of its proper divisors (21355793868).

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

15541300212 is a wasteful number, since it uses less digits than its factorization.

15541300212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11632 (or 11630 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 15541300212 its reverse (21200314551), we get a palindrome (36741614763).

The spelling of 15541300212 in words is "fifteen billion, five hundred forty-one million, three hundred thousand, two hundred twelve".