64338655 has 16 divisors (see below), whose sum is σ = 81525600. Its totient is φ = 48608640.

The previous prime is 64338649. The next prime is 64338679. The reversal of 64338655 is 55683346.

It is not a de Polignac number, because 64338655 - 2¹¹ = 64336607 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36085 + ... + 37825.

It is an arithmetic number, because the mean of its divisors is an integer number (5095350).

Almost surely, 2^64338655 is an apocalyptic number.

64338655 is a deficient number, since it is larger than the sum of its proper divisors (17186945).

64338655 is a wasteful number, since it uses less digits than its factorization.

64338655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2154.

The product of its digits is 259200, while the sum is 40.

The square root of 64338655 is about 8021.1380115293. The cubic root of 64338655 is about 400.7042904596.

The spelling of 64338655 in words is "sixty-four million, three hundred thirty-eight thousand, six hundred fifty-five".