162749553564 has 24 divisors (see below), whose sum is σ = 408960417040. Its totient is φ = 50076785664.

The previous prime is 162749553523. The next prime is 162749553583. The reversal of 162749553564 is 465355947261.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 521633029 + ... + 521633340.

Almost surely, 2^162749553564 is an apocalyptic number.

It is an amenable number.

162749553564 is an abundant number, since it is smaller than the sum of its proper divisors (246210863476).

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

162749553564 is a wasteful number, since it uses less digits than its factorization.

162749553564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043266389 (or 1043266387 counting only the distinct ones).

The product of its digits is 27216000, while the sum is 57.

The spelling of 162749553564 in words is "one hundred sixty-two billion, seven hundred forty-nine million, five hundred fifty-three thousand, five hundred sixty-four".