16977091564 has 24 divisors (see below), whose sum is σ = 30449765808. Its totient is φ = 8277365760.

The previous prime is 16977091561. The next prime is 16977091567. The reversal of 16977091564 is 46519077961.

It is an interprime number because it is at equal distance from previous prime (16977091561) and next prime (16977091567).

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (16977091561) 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, 316764 + ... + 366460.

It is an arithmetic number, because the mean of its divisors is an integer number (1268740242).

Almost surely, 2^16977091564 is an apocalyptic number.

It is an amenable number.

16977091564 is a deficient number, since it is larger than the sum of its proper divisors (13472674244).

16977091564 is a wasteful number, since it uses less digits than its factorization.

16977091564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51825 (or 51823 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 55.

It can be divided in two parts, 1697 and 7091564, that added together give a triangular number (7093261 = T₃₇₆₆).

The spelling of 16977091564 in words is "sixteen billion, nine hundred seventy-seven million, ninety-one thousand, five hundred sixty-four".