2166302563552 has 72 divisors (see below), whose sum is σ = 4341308571936. Its totient is φ = 1064073024000.

The previous prime is 2166302563549. The next prime is 2166302563553. The reversal of 2166302563552 is 2553652036612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166302563553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45304777 + ... + 45352567.

It is an arithmetic number, because the mean of its divisors is an integer number (60295952388).

Almost surely, 2^{2166302563552} is an apocalyptic number.

It is an amenable number.

2166302563552 is an abundant number, since it is smaller than the sum of its proper divisors (2175006008384).

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

2166302563552 is an equidigital number, since it uses as much as digits as its factorization.

2166302563552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48224 (or 48145 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 46.

The spelling of 2166302563552 in words is "two trillion, one hundred sixty-six billion, three hundred two million, five hundred sixty-three thousand, five hundred fifty-two".