20115332152 has 16 divisors (see below), whose sum is σ = 38140027200. Its totient is φ = 9944658240.

The previous prime is 20115332131. The next prime is 20115332191. The reversal of 20115332152 is 25123351102.

It is a super-2 number, since 2×20115332152² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14125224 + ... + 14126647.

It is an arithmetic number, because the mean of its divisors is an integer number (2383751700).

Almost surely, 2^20115332152 is an apocalyptic number.

It is an amenable number.

20115332152 is a deficient number, since it is larger than the sum of its proper divisors (18024695048).

20115332152 is a wasteful number, since it uses less digits than its factorization.

20115332152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28251966 (or 28251962 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 20115332152 its reverse (25123351102), we get a palindrome (45238683254).

The spelling of 20115332152 in words is "twenty billion, one hundred fifteen million, three hundred thirty-two thousand, one hundred fifty-two".