16858164402 has 12 divisors (see below), whose sum is σ = 36526022910. Its totient is φ = 5619388128.

The previous prime is 16858164391. The next prime is 16858164437. The reversal of 16858164402 is 20446185861.

It is a happy number.

16858164402 is a `hidden beast` number, since 1 + 6 + 8 + 581 + 64 + 4 + 0 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 16651063521 + 207100881 = 129039^2 + 14391^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 468282327 + ... + 468282362.

Almost surely, 2^16858164402 is an apocalyptic number.

16858164402 is an abundant number, since it is smaller than the sum of its proper divisors (19667858508).

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

16858164402 is a wasteful number, since it uses less digits than its factorization.

16858164402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936564697 (or 936564694 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 16858164402 in words is "sixteen billion, eight hundred fifty-eight million, one hundred sixty-four thousand, four hundred two".