21160466043156 has 72 divisors (see below), whose sum is σ = 58352133647808. Its totient is φ = 6412202496000.

The previous prime is 21160466043149. The next prime is 21160466043173. The reversal of 21160466043156 is 65134066406112.

21160466043156 is a `hidden beast` number, since 2 + 1 + 1 + 6 + 0 + 4 + 6 + 604 + 31 + 5 + 6 = 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 23 ways as a sum of consecutive naturals, for example, 61283476 + ... + 61627796.

It is an arithmetic number, because the mean of its divisors is an integer number (810446300664).

Almost surely, 2^{21160466043156} is an apocalyptic number.

It is an amenable number.

21160466043156 is an abundant number, since it is smaller than the sum of its proper divisors (37191667604652).

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

21160466043156 is a wasteful number, since it uses less digits than its factorization.

21160466043156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499533 (or 499528 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 21160466043156 in words is "twenty-one trillion, one hundred sixty billion, four hundred sixty-six million, forty-three thousand, one hundred fifty-six".