64605955 has 16 divisors (see below), whose sum is σ = 80396064. Its totient is φ = 49803520.

The previous prime is 64605943. The next prime is 64605973. The reversal of 64605955 is 55950646.

It is a de Polignac number, because none of the positive numbers 2^k-64605955 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, 15117 + ... + 18913.

It is an arithmetic number, because the mean of its divisors is an integer number (5024754).

Almost surely, 2^64605955 is an apocalyptic number.

64605955 is a deficient number, since it is larger than the sum of its proper divisors (15790109).

64605955 is a wasteful number, since it uses less digits than its factorization.

64605955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3926.

The product of its (nonzero) digits is 162000, while the sum is 40.

The square root of 64605955 is about 8037.7829654700. The cubic root of 64605955 is about 401.2584429016.

The spelling of 64605955 in words is "sixty-four million, six hundred five thousand, nine hundred fifty-five".