21365035514116 has 24 divisors (see below), whose sum is σ = 45243604619136. Its totient is φ = 8617829450880.

The previous prime is 21365035514023. The next prime is 21365035514131. The reversal of 21365035514116 is 61141553056312.

It is a super-2 number, since 2×21365035514116² (a number of 27 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 22442263720 + ... + 22442264671.

It is an arithmetic number, because the mean of its divisors is an integer number (1885150192464).

Almost surely, 2^{21365035514116} is an apocalyptic number.

It is an amenable number.

21365035514116 is an abundant number, since it is smaller than the sum of its proper divisors (23878569105020).

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

21365035514116 is a wasteful number, since it uses less digits than its factorization.

21365035514116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44884528419 (or 44884528417 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 43.

The spelling of 21365035514116 in words is "twenty-one trillion, three hundred sixty-five billion, thirty-five million, five hundred fourteen thousand, one hundred sixteen".