87031177066 has 16 divisors (see below), whose sum is σ = 135083678400. Its totient is φ = 42026025888.

The previous prime is 87031177039. The next prime is 87031177067. The reversal of 87031177066 is 66077113078.

It is not an unprimeable number, because it can be changed into a prime (87031177067) 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, 5677686 + ... + 5692993.

It is an arithmetic number, because the mean of its divisors is an integer number (8442729900).

Almost surely, 2^87031177066 is an apocalyptic number.

87031177066 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

87031177066 is a deficient number, since it is larger than the sum of its proper divisors (48052501334).

87031177066 is a wasteful number, since it uses less digits than its factorization.

87031177066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11370813.

The product of its (nonzero) digits is 296352, while the sum is 46.

The spelling of 87031177066 in words is "eighty-seven billion, thirty-one million, one hundred seventy-seven thousand, sixty-six".