56566146402 has 24 divisors (see below), whose sum is σ = 122565843036. Its totient is φ = 18854480736.

The previous prime is 56566146397. The next prime is 56566146407. The reversal of 56566146402 is 20464166565.

56566146402 is a `hidden beast` number, since 5 + 6 + 566 + 1 + 46 + 40 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (56566146397) and next prime (56566146407).

It can be written as a sum of positive squares in 2 ways, for example, as 54971022681 + 1595123721 = 234459^2 + 39939^2 .

It is not an unprimeable number, because it can be changed into a prime (56566146407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 389548 + ... + 514664.

Almost surely, 2^56566146402 is an apocalyptic number.

56566146402 is an abundant number, since it is smaller than the sum of its proper divisors (65999696634).

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

56566146402 is a wasteful number, since it uses less digits than its factorization.

56566146402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150242 (or 150239 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 56566146402 in words is "fifty-six billion, five hundred sixty-six million, one hundred forty-six thousand, four hundred two".