1046664665 has 16 divisors (see below), whose sum is σ = 1300276800. Its totient is φ = 807855552.

The previous prime is 1046664649. The next prime is 1046664701. The reversal of 1046664665 is 5664666401.

It is not a de Polignac number, because 1046664665 - 2⁴ = 1046664649 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 366734 + ... + 369576.

It is an arithmetic number, because the mean of its divisors is an integer number (81267300).

Almost surely, 2^1046664665 is an apocalyptic number.

It is an amenable number.

1046664665 is a deficient number, since it is larger than the sum of its proper divisors (253612135).

1046664665 is a wasteful number, since it uses less digits than its factorization.

1046664665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5416.

The product of its (nonzero) digits is 622080, while the sum is 44.

The square root of 1046664665 is about 32352.1972205908. The cubic root of 1046664665 is about 1015.3190177132.

The spelling of 1046664665 in words is "one billion, forty-six million, six hundred sixty-four thousand, six hundred sixty-five".