87155573016 has 32 divisors (see below), whose sum is σ = 221141010240. Its totient is φ = 28618247328.

The previous prime is 87155572993. The next prime is 87155573027. The reversal of 87155573016 is 61037555178.

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, 27099006 + ... + 27102221.

It is an arithmetic number, because the mean of its divisors is an integer number (6910656570).

Almost surely, 2^87155573016 is an apocalyptic number.

It is an amenable number.

87155573016 is an abundant number, since it is smaller than the sum of its proper divisors (133985437224).

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

87155573016 is a wasteful number, since it uses less digits than its factorization.

87155573016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54201303 (or 54201299 counting only the distinct ones).

The product of its (nonzero) digits is 882000, while the sum is 48.

The spelling of 87155573016 in words is "eighty-seven billion, one hundred fifty-five million, five hundred seventy-three thousand, sixteen".