87516067956 has 12 divisors (see below), whose sum is σ = 204204158592. Its totient is φ = 29172022648.

The previous prime is 87516067943. The next prime is 87516067957. The reversal of 87516067956 is 65976061578.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 87516067956.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87516067957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3646502820 + ... + 3646502843.

It is an arithmetic number, because the mean of its divisors is an integer number (17017013216).

Almost surely, 2^87516067956 is an apocalyptic number.

It is an amenable number.

87516067956 is an abundant number, since it is smaller than the sum of its proper divisors (116688090636).

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

87516067956 is a wasteful number, since it uses less digits than its factorization.

87516067956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7293005670 (or 7293005668 counting only the distinct ones).

The product of its (nonzero) digits is 19051200, while the sum is 60.

The spelling of 87516067956 in words is "eighty-seven billion, five hundred sixteen million, sixty-seven thousand, nine hundred fifty-six".