21734541072660 has 96 divisors (see below), whose sum is σ = 67797931904640. Its totient is φ = 5165556705792.

The previous prime is 21734541072637. The next prime is 21734541072719. The reversal of 21734541072660 is 6627014543712.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 480404902 + ... + 480450141.

It is an arithmetic number, because the mean of its divisors is an integer number (706228457340).

Almost surely, 2^{21734541072660} is an apocalyptic number.

21734541072660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21734541072660 is an abundant number, since it is smaller than the sum of its proper divisors (46063390831980).

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

21734541072660 is a wasteful number, since it uses less digits than its factorization.

21734541072660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960855097 (or 960855095 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 48.

The spelling of 21734541072660 in words is "twenty-one trillion, seven hundred thirty-four billion, five hundred forty-one million, seventy-two thousand, six hundred sixty".