666460156 has 6 divisors (see below), whose sum is σ = 1166305280. Its totient is φ = 333230076.

The previous prime is 666460153. The next prime is 666460181. The reversal of 666460156 is 651064666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666460153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83307516 + ... + 83307523.

Almost surely, 2^666460156 is an apocalyptic number.

It is an amenable number.

666460156 is a deficient number, since it is larger than the sum of its proper divisors (499845124).

666460156 is a wasteful number, since it uses less digits than its factorization.

666460156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166615043 (or 166615041 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 666460156 is about 25815.8896031107. The cubic root of 666460156 is about 873.4902535788.

The spelling of 666460156 in words is "six hundred sixty-six million, four hundred sixty thousand, one hundred fifty-six".