2151115161016 has 8 divisors (see below), whose sum is σ = 4033340926920. Its totient is φ = 1075557580504.

The previous prime is 2151115161001. The next prime is 2151115161017. The reversal of 2151115161016 is 6101615111512.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151115161017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134444697556 + ... + 134444697571.

It is an arithmetic number, because the mean of its divisors is an integer number (504167615865).

Almost surely, 2^{2151115161016} is an apocalyptic number.

It is an amenable number.

2151115161016 is a deficient number, since it is larger than the sum of its proper divisors (1882225765904).

2151115161016 is a wasteful number, since it uses less digits than its factorization.

2151115161016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268889395133 (or 268889395129 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 31.

The spelling of 2151115161016 in words is "two trillion, one hundred fifty-one billion, one hundred fifteen million, one hundred sixty-one thousand, sixteen".