87806955960 has 64 divisors (see below), whose sum is σ = 292689856800. Its totient is φ = 23415187968.

The previous prime is 87806955947. The next prime is 87806955983. The reversal of 87806955960 is 6955960878.

87806955960 is a `hidden beast` number, since 8 + 78 + 0 + 6 + 9 + 559 + 6 + 0 = 666.

It is a super-2 number, since 2×87806955960² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 40650289 + ... + 40652448.

Almost surely, 2^87806955960 is an apocalyptic number.

It is an amenable number.

87806955960 is an abundant number, since it is smaller than the sum of its proper divisors (204882900840).

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

87806955960 is a wasteful number, since it uses less digits than its factorization.

87806955960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81302757 (or 81302747 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 63.

The spelling of 87806955960 in words is "eighty-seven billion, eight hundred six million, nine hundred fifty-five thousand, nine hundred sixty".