64446382355 has 8 divisors (see below), whose sum is σ = 77338485312. Its totient is φ = 51555221568.

The previous prime is 64446382349. The next prime is 64446382361. The reversal of 64446382355 is 55328364446.

It is an interprime number because it is at equal distance from previous prime (64446382349) and next prime (64446382361).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64446382355 - 2⁶ = 64446382291 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75122 + ... + 366791.

It is an arithmetic number, because the mean of its divisors is an integer number (9667310664).

Almost surely, 2^64446382355 is an apocalyptic number.

64446382355 is a deficient number, since it is larger than the sum of its proper divisors (12892102957).

64446382355 is a wasteful number, since it uses less digits than its factorization.

64446382355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471085.

The product of its digits is 8294400, while the sum is 50.

The spelling of 64446382355 in words is "sixty-four billion, four hundred forty-six million, three hundred eighty-two thousand, three hundred fifty-five".