660953434 has 8 divisors (see below), whose sum is σ = 991546740. Its totient is φ = 330437856.

The previous prime is 660953417. The next prime is 660953477. The reversal of 660953434 is 434359066.

It can be written as a sum of positive squares in 2 ways, for example, as 388208209 + 272745225 = 19703^2 + 16515^2 .

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, 11992 + ... + 38284.

Almost surely, 2^660953434 is an apocalyptic number.

660953434 is a deficient number, since it is larger than the sum of its proper divisors (330593306).

660953434 is a wasteful number, since it uses less digits than its factorization.

660953434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38864.

The product of its (nonzero) digits is 233280, while the sum is 40.

The square root of 660953434 is about 25709.0146446728. The cubic root of 660953434 is about 871.0778177365.

The spelling of 660953434 in words is "six hundred sixty million, nine hundred fifty-three thousand, four hundred thirty-four".