87161221352 has 16 divisors (see below), whose sum is σ = 163817337600. Its totient is φ = 43476598000.

The previous prime is 87161221349. The next prime is 87161221403. The reversal of 87161221352 is 25312216178.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12998024 + ... + 13004727.

It is an arithmetic number, because the mean of its divisors is an integer number (10238583600).

Almost surely, 2^87161221352 is an apocalyptic number.

It is an amenable number.

87161221352 is a deficient number, since it is larger than the sum of its proper divisors (76656116248).

87161221352 is a wasteful number, since it uses less digits than its factorization.

87161221352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26003176 (or 26003172 counting only the distinct ones).

The product of its digits is 40320, while the sum is 38.

The spelling of 87161221352 in words is "eighty-seven billion, one hundred sixty-one million, two hundred twenty-one thousand, three hundred fifty-two".