21652432502460 has 48 divisors (see below), whose sum is σ = 60637721930016. Its totient is φ = 5772942865152.

The previous prime is 21652432502429. The next prime is 21652432502471. The reversal of 21652432502460 is 6420523425612.

It is a congruent number.

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, 32136787 + ... + 32803626.

It is an arithmetic number, because the mean of its divisors is an integer number (1263285873542).

Almost surely, 2^{21652432502460} is an apocalyptic number.

21652432502460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21652432502460 is an abundant number, since it is smaller than the sum of its proper divisors (38985289427556).

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

21652432502460 is a wasteful number, since it uses less digits than its factorization.

21652432502460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64945982 (or 64945980 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 42.

The spelling of 21652432502460 in words is "twenty-one trillion, six hundred fifty-two billion, four hundred thirty-two million, five hundred two thousand, four hundred sixty".