88778556506 has 8 divisors (see below), whose sum is σ = 133270196724. Its totient is φ = 44355157600.

The previous prime is 88778556481. The next prime is 88778556511. The reversal of 88778556506 is 60565587788.

It can be written as a sum of positive squares in 2 ways, for example, as 61764675625 + 27013880881 = 248525^2 + 164359^2 .

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

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, 17057075 + ... + 17062278.

Almost surely, 2^88778556506 is an apocalyptic number.

88778556506 is a deficient number, since it is larger than the sum of its proper divisors (44491640218).

88778556506 is a wasteful number, since it uses less digits than its factorization.

88778556506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34120656.

The product of its (nonzero) digits is 112896000, while the sum is 65.

The spelling of 88778556506 in words is "eighty-eight billion, seven hundred seventy-eight million, five hundred fifty-six thousand, five hundred six".