16858115957 has 8 divisors (see below), whose sum is σ = 17183177856. Its totient is φ = 16535214432.

The previous prime is 16858115941. The next prime is 16858116031. The reversal of 16858115957 is 75951185861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16858115957 - 2⁴ = 16858115941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16858115357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 524333 + ... + 555554.

It is an arithmetic number, because the mean of its divisors is an integer number (2147897232).

Almost surely, 2^16858115957 is an apocalyptic number.

It is an amenable number.

16858115957 is a deficient number, since it is larger than the sum of its proper divisors (325061899).

16858115957 is a wasteful number, since it uses less digits than its factorization.

16858115957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080187.

The product of its digits is 3024000, while the sum is 56.

The spelling of 16858115957 in words is "sixteen billion, eight hundred fifty-eight million, one hundred fifteen thousand, nine hundred fifty-seven".