61804599020 has 48 divisors (see below), whose sum is σ = 130846369248. Its totient is φ = 24520865280.

The previous prime is 61804599011. The next prime is 61804599049. The reversal of 61804599020 is 2099540816.

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, 3506630 + ... + 3524210.

It is an arithmetic number, because the mean of its divisors is an integer number (2725966026).

Almost surely, 2^61804599020 is an apocalyptic number.

It is an amenable number.

61804599020 is an abundant number, since it is smaller than the sum of its proper divisors (69041770228).

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

61804599020 is a wasteful number, since it uses less digits than its factorization.

61804599020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19010 (or 19008 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The spelling of 61804599020 in words is "sixty-one billion, eight hundred four million, five hundred ninety-nine thousand, twenty".