21716002663530 has 64 divisors (see below), whose sum is σ = 59566198652928. Its totient is φ = 4963465615680.

The previous prime is 21716002663529. The next prime is 21716002663631. The reversal of 21716002663530 is 3536620061712.

It is a Harshad number since it is a multiple of its sum of digits (42).

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 31 ways as a sum of consecutive naturals, for example, 3472215 + ... + 7449045.

It is an arithmetic number, because the mean of its divisors is an integer number (930721853952).

Almost surely, 2^{21716002663530} is an apocalyptic number.

21716002663530 is an abundant number, since it is smaller than the sum of its proper divisors (37850195989398).

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

21716002663530 is a wasteful number, since it uses less digits than its factorization.

21716002663530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4002851.

The product of its (nonzero) digits is 272160, while the sum is 42.

The spelling of 21716002663530 in words is "twenty-one trillion, seven hundred sixteen billion, two million, six hundred sixty-three thousand, five hundred thirty".