653332665 has 64 divisors (see below), whose sum is σ = 1103155200. Its totient is φ = 329892864.

The previous prime is 653332633. The next prime is 653332681. The reversal of 653332665 is 566233356.

It is not a de Polignac number, because 653332665 - 2⁵ = 653332633 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4700166 + ... + 4700304.

It is an arithmetic number, because the mean of its divisors is an integer number (17236800).

Almost surely, 2^653332665 is an apocalyptic number.

It is an amenable number.

653332665 is a deficient number, since it is larger than the sum of its proper divisors (449822535).

653332665 is a wasteful number, since it uses less digits than its factorization.

653332665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366.

The product of its digits is 291600, while the sum is 39.

The square root of 653332665 is about 25560.3729432886. The cubic root of 653332665 is about 867.7170360576.

The spelling of 653332665 in words is "six hundred fifty-three million, three hundred thirty-two thousand, six hundred sixty-five".