87065359220 has 24 divisors (see below), whose sum is σ = 208956862464. Its totient is φ = 29850980256.

The previous prime is 87065359219. The next prime is 87065359247. The reversal of 87065359220 is 2295356078.

It is a super-2 number, since 2×87065359220² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 310947572 + ... + 310947851.

It is an arithmetic number, because the mean of its divisors is an integer number (8706535936).

Almost surely, 2^87065359220 is an apocalyptic number.

It is an amenable number.

87065359220 is an abundant number, since it is smaller than the sum of its proper divisors (121891503244).

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

87065359220 is a wasteful number, since it uses less digits than its factorization.

87065359220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621895439 (or 621895437 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 47.

The spelling of 87065359220 in words is "eighty-seven billion, sixty-five million, three hundred fifty-nine thousand, two hundred twenty".