21616240310502 has 16 divisors (see below), whose sum is σ = 43234787439360. Its totient is φ = 7205028967112.

The previous prime is 21616240310479. The next prime is 21616240310519. The reversal of 21616240310502 is 20501304261612.

It is a super-2 number, since 2×21616240310502² (a number of 27 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 95995602 + ... + 96220517.

It is an arithmetic number, because the mean of its divisors is an integer number (2702174214960).

Almost surely, 2^{21616240310502} is an apocalyptic number.

21616240310502 is an abundant number, since it is smaller than the sum of its proper divisors (21618547128858).

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

21616240310502 is a wasteful number, since it uses less digits than its factorization.

21616240310502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192234867.

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 21616240310502 in words is "twenty-one trillion, six hundred sixteen billion, two hundred forty million, three hundred ten thousand, five hundred two".