30640254560 has 48 divisors (see below), whose sum is σ = 72462518352. Its totient is φ = 12243417600.

The previous prime is 30640254527. The next prime is 30640254599. The reversal of 30640254560 is 6545204603.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 30640254560.

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, 56750 + ... + 253970.

It is an arithmetic number, because the mean of its divisors is an integer number (1509635799).

Almost surely, 2^30640254560 is an apocalyptic number.

It is an amenable number.

30640254560 is an abundant number, since it is smaller than the sum of its proper divisors (41822263792).

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

30640254560 is a wasteful number, since it uses less digits than its factorization.

30640254560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198207 (or 198199 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

The spelling of 30640254560 in words is "thirty billion, six hundred forty million, two hundred fifty-four thousand, five hundred sixty".