655745547540 has 48 divisors (see below), whose sum is σ = 1915917429888. Its totient is φ = 167262632064.

The previous prime is 655745547539. The next prime is 655745547607. The reversal of 655745547540 is 45745547556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237587587 + ... + 237590346.

It is an arithmetic number, because the mean of its divisors is an integer number (39914946456).

Almost surely, 2^655745547540 is an apocalyptic number.

655745547540 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

655745547540 is an abundant number, since it is smaller than the sum of its proper divisors (1260171882348).

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

655745547540 is a wasteful number, since it uses less digits than its factorization.

655745547540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475177968 (or 475177966 counting only the distinct ones).

The product of its (nonzero) digits is 58800000, while the sum is 57.

The spelling of 655745547540 in words is "six hundred fifty-five billion, seven hundred forty-five million, five hundred forty-seven thousand, five hundred forty".