87566180044 has 12 divisors (see below), whose sum is σ = 175132360144. Its totient is φ = 37528362864.

The previous prime is 87566180041. The next prime is 87566180057. The reversal of 87566180044 is 44008166578.

87566180044 is an admirable number.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 87566180044.

It is not an unprimeable number, because it can be changed into a prime (87566180041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1563681759 + ... + 1563681814.

Almost surely, 2^87566180044 is an apocalyptic number.

It is an amenable number.

87566180044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

87566180044 is a wasteful number, since it uses less digits than its factorization.

87566180044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3127363584 (or 3127363582 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 49.

The spelling of 87566180044 in words is "eighty-seven billion, five hundred sixty-six million, one hundred eighty thousand, forty-four".