612132665 has 16 divisors (see below), whose sum is σ = 776756736. Its totient is φ = 462345600.

The previous prime is 612132659. The next prime is 612132683. The reversal of 612132665 is 566231216.

It is a de Polignac number, because none of the positive numbers 2^k-612132665 is a prime.

It is a Duffinian number.

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, 41807 + ... + 54516.

It is an arithmetic number, because the mean of its divisors is an integer number (48547296).

Almost surely, 2^612132665 is an apocalyptic number.

It is an amenable number.

612132665 is a deficient number, since it is larger than the sum of its proper divisors (164624071).

612132665 is a wasteful number, since it uses less digits than its factorization.

612132665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96400.

The product of its digits is 12960, while the sum is 32.

The square root of 612132665 is about 24741.3149408030. The cubic root of 612132665 is about 849.0798185040.

The spelling of 612132665 in words is "six hundred twelve million, one hundred thirty-two thousand, six hundred sixty-five".