420656563500 has 48 divisors (see below), whose sum is σ = 1224951917280. Its totient is φ = 112175083200.

The previous prime is 420656563471. The next prime is 420656563511. The reversal of 420656563500 is 5365656024.

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, 140217355 + ... + 140220354.

It is an arithmetic number, because the mean of its divisors is an integer number (25519831610).

Almost surely, 2^420656563500 is an apocalyptic number.

It is an amenable number.

420656563500 is an abundant number, since it is smaller than the sum of its proper divisors (804295353780).

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

420656563500 is a wasteful number, since it uses less digits than its factorization.

420656563500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280437731 (or 280437719 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 42.

The spelling of 420656563500 in words is "four hundred twenty billion, six hundred fifty-six million, five hundred sixty-three thousand, five hundred".