916512115651 has 4 divisors (see below), whose sum is σ = 999831398904. Its totient is φ = 833192832400.

The previous prime is 916512115523. The next prime is 916512115691. The reversal of 916512115651 is 156511215619.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 916512115651 - 2⁷ = 916512115523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 916512115598 and 916512115607.

It is not an unprimeable number, because it can be changed into a prime (916512115691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41659641610 + ... + 41659641631.

It is an arithmetic number, because the mean of its divisors is an integer number (249957849726).

Almost surely, 2^916512115651 is an apocalyptic number.

916512115651 is a deficient number, since it is larger than the sum of its proper divisors (83319283253).

916512115651 is a wasteful number, since it uses less digits than its factorization.

916512115651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83319283252.

The product of its digits is 81000, while the sum is 43.

The spelling of 916512115651 in words is "nine hundred sixteen billion, five hundred twelve million, one hundred fifteen thousand, six hundred fifty-one".