21137002061360 has 40 divisors (see below), whose sum is σ = 49143764910240. Its totient is φ = 8454760374272.

The previous prime is 21137002061353. The next prime is 21137002061389. The reversal of 21137002061360 is 6316020073112.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×21137002061360² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20641136 + ... + 21640944.

It is an arithmetic number, because the mean of its divisors is an integer number (1228594122756).

Almost surely, 2^{21137002061360} is an apocalyptic number.

21137002061360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21137002061360 is an abundant number, since it is smaller than the sum of its proper divisors (28006762848880).

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

21137002061360 is a wasteful number, since it uses less digits than its factorization.

21137002061360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264085 (or 1264079 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The spelling of 21137002061360 in words is "twenty-one trillion, one hundred thirty-seven billion, two million, sixty-one thousand, three hundred sixty".