668058885 has 96 divisors (see below), whose sum is σ = 1287188448. Its totient is φ = 318504960.

The previous prime is 668058883. The next prime is 668058889. The reversal of 668058885 is 588850866.

It can be written as a sum of positive squares in 16 ways, for example, as 542237796 + 125821089 = 23286^2 + 11217^2 .

It is not a de Polignac number, because 668058885 - 2¹ = 668058883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668058883) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3461349 + ... + 3461541.

It is an arithmetic number, because the mean of its divisors is an integer number (13408213).

Almost surely, 2^668058885 is an apocalyptic number.

668058885 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

668058885 is a deficient number, since it is larger than the sum of its proper divisors (619129563).

668058885 is a wasteful number, since it uses less digits than its factorization.

668058885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 54.

The square root of 668058885 is about 25846.8351060628. The cubic root of 668058885 is about 874.1881492869.

The spelling of 668058885 in words is "six hundred sixty-eight million, fifty-eight thousand, eight hundred eighty-five".