20151615102 has 16 divisors (see below), whose sum is σ = 41392507152. Its totient is φ = 6535658880.

The previous prime is 20151615083. The next prime is 20151615119.

20151615102 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45386299 + ... + 45386742.

It is an arithmetic number, because the mean of its divisors is an integer number (2587031697).

Almost surely, 2^20151615102 is an apocalyptic number.

20151615102 is an abundant number, since it is smaller than the sum of its proper divisors (21240892050).

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

20151615102 is a wasteful number, since it uses less digits than its factorization.

20151615102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90773083.

The product of its (nonzero) digits is 600, while the sum is 24.

The spelling of 20151615102 in words is "twenty billion, one hundred fifty-one million, six hundred fifteen thousand, one hundred two".