87602605220 has 24 divisors (see below), whose sum is σ = 198116661624. Its totient is φ = 32345577216.

The previous prime is 87602605217. The next prime is 87602605231. The reversal of 87602605220 is 2250620678.

It can be written as a sum of positive squares in 4 ways, for example, as 18164031076 + 69438574144 = 134774^2 + 263512^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168466289 + ... + 168466808.

It is an arithmetic number, because the mean of its divisors is an integer number (8254860901).

Almost surely, 2^87602605220 is an apocalyptic number.

It is an amenable number.

87602605220 is an abundant number, since it is smaller than the sum of its proper divisors (110514056404).

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

87602605220 is a wasteful number, since it uses less digits than its factorization.

87602605220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336933119 (or 336933117 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The spelling of 87602605220 in words is "eighty-seven billion, six hundred two million, six hundred five thousand, two hundred twenty".