1046512665 has 72 divisors (see below), whose sum is σ = 2022681024. Its totient is φ = 500068800.

The previous prime is 1046512661. The next prime is 1046512667. The reversal of 1046512665 is 5662156401.

1046512665 is a `hidden beast` number, since 10 + 465 + 126 + 65 = 666.

It is not a de Polignac number, because 1046512665 - 2² = 1046512661 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1046512661) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 385242 + ... + 387948.

It is an arithmetic number, because the mean of its divisors is an integer number (28092792).

Almost surely, 2^1046512665 is an apocalyptic number.

1046512665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1046512665 is a deficient number, since it is larger than the sum of its proper divisors (976168359).

1046512665 is a wasteful number, since it uses less digits than its factorization.

1046512665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2811 (or 2797 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 1046512665 is about 32349.8479903693. The cubic root of 1046512665 is about 1015.2698660390.

The spelling of 1046512665 in words is "one billion, forty-six million, five hundred twelve thousand, six hundred sixty-five".