64380096655 has 32 divisors (see below), whose sum is σ = 90013077504. Its totient is φ = 43292088576.

The previous prime is 64380096647. The next prime is 64380096719. The reversal of 64380096655 is 55669008346.

It is a cyclic number.

It is not a de Polignac number, because 64380096655 - 2³ = 64380096647 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 461379 + ... + 584491.

It is an arithmetic number, because the mean of its divisors is an integer number (2812908672).

Almost surely, 2^64380096655 is an apocalyptic number.

64380096655 is a deficient number, since it is larger than the sum of its proper divisors (25632980849).

64380096655 is a wasteful number, since it uses less digits than its factorization.

64380096655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123415.

The product of its (nonzero) digits is 4665600, while the sum is 52.

The spelling of 64380096655 in words is "sixty-four billion, three hundred eighty million, ninety-six thousand, six hundred fifty-five".