16538750164 has 12 divisors (see below), whose sum is σ = 28952963284. Its totient is φ = 8266474944.

The previous prime is 16538750149. The next prime is 16538750167. The reversal of 16538750164 is 46105783561.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15041060164 + 1497690000 = 122642^2 + 38700^2 .

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16538750167) 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, 712179 + ... + 735034.

Almost surely, 2^16538750164 is an apocalyptic number.

It is an amenable number.

16538750164 is a deficient number, since it is larger than the sum of its proper divisors (12414213120).

16538750164 is a wasteful number, since it uses less digits than its factorization.

16538750164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450074 (or 1450072 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 16538750164 in words is "sixteen billion, five hundred thirty-eight million, seven hundred fifty thousand, one hundred sixty-four".