20578216330632 has 32 divisors (see below), whose sum is σ = 52835960851200. Its totient is φ = 6674016106944.

The previous prime is 20578216330631. The next prime is 20578216330697. The reversal of 20578216330632 is 23603361287502.

It is not an unprimeable number, because it can be changed into a prime (20578216330631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11586832632 + ... + 11586834407.

It is an arithmetic number, because the mean of its divisors is an integer number (1651123776600).

Almost surely, 2^{20578216330632} is an apocalyptic number.

It is an amenable number.

20578216330632 is an abundant number, since it is smaller than the sum of its proper divisors (32257744520568).

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

20578216330632 is a wasteful number, since it uses less digits than its factorization.

20578216330632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23173667085 (or 23173667081 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 48.

The spelling of 20578216330632 in words is "twenty trillion, five hundred seventy-eight billion, two hundred sixteen million, three hundred thirty thousand, six hundred thirty-two".