21500157363060 has 48 divisors (see below), whose sum is σ = 60207064126272. Its totient is φ = 5732744486400.

The previous prime is 21500157363001. The next prime is 21500157363089. The reversal of 21500157363060 is 6036375100512.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19162821 + ... + 20253740.

It is an arithmetic number, because the mean of its divisors is an integer number (1254313835964).

Almost surely, 2^{21500157363060} is an apocalyptic number.

21500157363060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21500157363060 is an abundant number, since it is smaller than the sum of its proper divisors (38706906763212).

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

21500157363060 is a wasteful number, since it uses less digits than its factorization.

21500157363060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39425664 (or 39425662 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 39.

The spelling of 21500157363060 in words is "twenty-one trillion, five hundred billion, one hundred fifty-seven million, three hundred sixty-three thousand, sixty".