87380166021 has 8 divisors (see below), whose sum is σ = 116555462400. Its totient is φ = 58229156832.

The previous prime is 87380165989. The next prime is 87380166037. The reversal of 87380166021 is 12066108378.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87380166021 - 2⁵ = 87380165989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87380166421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6063400 + ... + 6077793.

It is an arithmetic number, because the mean of its divisors is an integer number (14569432800).

Almost surely, 2^87380166021 is an apocalyptic number.

It is an amenable number.

87380166021 is a deficient number, since it is larger than the sum of its proper divisors (29175296379).

87380166021 is a wasteful number, since it uses less digits than its factorization.

87380166021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12143595.

The product of its (nonzero) digits is 96768, while the sum is 42.

The spelling of 87380166021 in words is "eighty-seven billion, three hundred eighty million, one hundred sixty-six thousand, twenty-one".