660413366 has 4 divisors (see below), whose sum is σ = 990620052. Its totient is φ = 330206682.

The previous prime is 660413359. The next prime is 660413371. The reversal of 660413366 is 663314066.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×660413366² = 872291627982899912, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165103340 + ... + 165103343.

It is an arithmetic number, because the mean of its divisors is an integer number (247655013).

Almost surely, 2^660413366 is an apocalyptic number.

660413366 is a deficient number, since it is larger than the sum of its proper divisors (330206686).

660413366 is a wasteful number, since it uses less digits than its factorization.

660413366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330206685.

The product of its (nonzero) digits is 46656, while the sum is 35.

The square root of 660413366 is about 25698.5090228986. The cubic root of 660413366 is about 870.8404992296.

The spelling of 660413366 in words is "six hundred sixty million, four hundred thirteen thousand, three hundred sixty-six".