668514035 has 16 divisors (see below), whose sum is σ = 970750656. Its totient is φ = 431443968.

The previous prime is 668514017. The next prime is 668514053. The reversal of 668514035 is 530415866.

It is an interprime number because it is at equal distance from previous prime (668514017) and next prime (668514053).

It is a cyclic number.

It is not a de Polignac number, because 668514035 - 2⁶ = 668513971 is a prime.

It is a super-2 number, since 2×668514035² = 893822029983962450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 668514035.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 561182 + ... + 562371.

It is an arithmetic number, because the mean of its divisors is an integer number (60671916).

Almost surely, 2^668514035 is an apocalyptic number.

668514035 is a deficient number, since it is larger than the sum of its proper divisors (302236621).

668514035 is a wasteful number, since it uses less digits than its factorization.

668514035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123582.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 668514035 is about 25855.6383599400. The cubic root of 668514035 is about 874.3866329929.

The spelling of 668514035 in words is "six hundred sixty-eight million, five hundred fourteen thousand, thirty-five".