21136741500366 has 24 divisors (see below), whose sum is σ = 45867718319904. Its totient is φ = 7034588951040.

The previous prime is 21136741500353. The next prime is 21136741500443. The reversal of 21136741500366 is 66300514763112.

21136741500366 is a `hidden beast` number, since 2 + 1 + 13 + 6 + 74 + 1 + 500 + 3 + 66 = 666.

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 11 ways as a sum of consecutive naturals, for example, 915950566 + ... + 915973641.

It is an arithmetic number, because the mean of its divisors is an integer number (1911154929996).

Almost surely, 2^{21136741500366} is an apocalyptic number.

21136741500366 is an abundant number, since it is smaller than the sum of its proper divisors (24730976819538).

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

21136741500366 is a wasteful number, since it uses less digits than its factorization.

21136741500366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1831924856 (or 1831924853 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 21136741500366 in words is "twenty-one trillion, one hundred thirty-six billion, seven hundred forty-one million, five hundred thousand, three hundred sixty-six".