87122255316 has 48 divisors (see below), whose sum is σ = 215561497536. Its totient is φ = 27292056064.

The previous prime is 87122255309. The next prime is 87122255371. The reversal of 87122255316 is 61355222178.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177306 + ... + 453521.

It is an arithmetic number, because the mean of its divisors is an integer number (4490864532).

Almost surely, 2^87122255316 is an apocalyptic number.

It is an amenable number.

87122255316 is an abundant number, since it is smaller than the sum of its proper divisors (128439242220).

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

87122255316 is a wasteful number, since it uses less digits than its factorization.

87122255316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631528 (or 631526 counting only the distinct ones).

The product of its digits is 201600, while the sum is 42.

The spelling of 87122255316 in words is "eighty-seven billion, one hundred twenty-two million, two hundred fifty-five thousand, three hundred sixteen".