87022615680 has 2304 divisors, whose sum is σ = 430494704640. Its totient is φ = 16303472640.

The previous prime is 87022615657. The next prime is 87022615721. The reversal of 87022615680 is 8651622078.

87022615680 is a `hidden beast` number, since 8 + 7 + 0 + 22 + 61 + 568 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 2023781739 + ... + 2023781781.

It is an arithmetic number, because the mean of its divisors is an integer number (186846660).

Almost surely, 2^87022615680 is an apocalyptic number.

87022615680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87022615680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215247352320).

87022615680 is an abundant number, since it is smaller than the sum of its proper divisors (343472088960).

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

87022615680 is a wasteful number, since it uses less digits than its factorization.

87022615680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 87022615680 in words is "eighty-seven billion, twenty-two million, six hundred fifteen thousand, six hundred eighty".