87766666663292 has 12 divisors (see below), whose sum is σ = 153687841791960. Its totient is φ = 43855854722736.

The previous prime is 87766666663279. The next prime is 87766666663373. The reversal of 87766666663292 is 29236666666778.

It is a super-2 number, since 2×87766666663292² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6869645042 + ... + 6869657817.

It is an arithmetic number, because the mean of its divisors is an integer number (12807320149330).

Almost surely, 2^{87766666663292} is an apocalyptic number.

It is an amenable number.

87766666663292 is a deficient number, since it is larger than the sum of its proper divisors (65921175128668).

87766666663292 is a wasteful number, since it uses less digits than its factorization.

87766666663292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13739304460 (or 13739304458 counting only the distinct ones).

The product of its digits is 11851370496, while the sum is 80.

The spelling of 87766666663292 in words is "eighty-seven trillion, seven hundred sixty-six billion, six hundred sixty-six million, six hundred sixty-three thousand, two hundred ninety-two".