549597473664 has 64 divisors (see below), whose sum is σ = 1463621562000. Its totient is φ = 182728159232.

The previous prime is 549597473611. The next prime is 549597473681. The reversal of 549597473664 is 466374795945.

It is a tau number, because it is divible by the number of its divisors (64).

It is a hoax number, since the sum of its digits (69) coincides with the sum of the digits of its distinct prime factors.

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, 1690269 + ... + 1989020.

Almost surely, 2^549597473664 is an apocalyptic number.

It is an amenable number.

549597473664 is an abundant number, since it is smaller than the sum of its proper divisors (914024088336).

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

549597473664 is a wasteful number, since it uses less digits than its factorization.

549597473664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3679695 (or 3679683 counting only the distinct ones).

The product of its digits is 685843200, while the sum is 69.

The spelling of 549597473664 in words is "five hundred forty-nine billion, five hundred ninety-seven million, four hundred seventy-three thousand, six hundred sixty-four".