666046367 has 12 divisors (see below), whose sum is σ = 779277096. Its totient is φ = 567589680.

The previous prime is 666046357. The next prime is 666046411. The reversal of 666046367 is 763640666.

It is not a de Polignac number, because 666046367 - 2¹² = 666042271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666046357) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 30809 + ... + 47762.

It is an arithmetic number, because the mean of its divisors is an integer number (64939758).

Almost surely, 2^666046367 is an apocalyptic number.

666046367 is a deficient number, since it is larger than the sum of its proper divisors (113230729).

666046367 is a wasteful number, since it uses less digits than its factorization.

666046367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78758 (or 78751 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 44.

The square root of 666046367 is about 25807.8741278704. The cubic root of 666046367 is about 873.3094398250.

The spelling of 666046367 in words is "six hundred sixty-six million, forty-six thousand, three hundred sixty-seven".