21616760441070 has 48 divisors (see below), whose sum is σ = 56207536519680. Its totient is φ = 5764063361472.

The previous prime is 21616760441039. The next prime is 21616760441189. The reversal of 21616760441070 is 7014406761612.

21616760441070 is a `hidden beast` number, since 2 + 1 + 6 + 167 + 6 + 0 + 4 + 410 + 70 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 23 ways as a sum of consecutive naturals, for example, 7174465 + ... + 9731724.

It is an arithmetic number, because the mean of its divisors is an integer number (1170990344160).

Almost surely, 2^{21616760441070} is an apocalyptic number.

21616760441070 is an abundant number, since it is smaller than the sum of its proper divisors (34590776078610).

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

21616760441070 is a wasteful number, since it uses less digits than its factorization.

21616760441070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16920409 (or 16920406 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 21616760441070 in words is "twenty-one trillion, six hundred sixteen billion, seven hundred sixty million, four hundred forty-one thousand, seventy".