668001082 has 64 divisors (see below), whose sum is σ = 1219774464. Its totient is φ = 268369920.

The previous prime is 668001079. The next prime is 668001101. The reversal of 668001082 is 280100866.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2599098 + ... + 2599354.

It is an arithmetic number, because the mean of its divisors is an integer number (19058976).

Almost surely, 2^668001082 is an apocalyptic number.

668001082 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

668001082 is a deficient number, since it is larger than the sum of its proper divisors (551773382).

668001082 is a wasteful number, since it uses less digits than its factorization.

668001082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 668001082 is about 25845.7168985501. The cubic root of 668001082 is about 874.1629358633.

The spelling of 668001082 in words is "six hundred sixty-eight million, one thousand, eighty-two".