64006380305 has 16 divisors (see below), whose sum is σ = 88097088000. Its totient is φ = 43731634752.

The previous prime is 64006380289. The next prime is 64006380311. The reversal of 64006380305 is 50308360046.

It is a cyclic number.

It is not a de Polignac number, because 64006380305 - 2⁴ = 64006380289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

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, 3291305 + ... + 3310694.

It is an arithmetic number, because the mean of its divisors is an integer number (5506068000).

Almost surely, 2^64006380305 is an apocalyptic number.

It is an amenable number.

64006380305 is a deficient number, since it is larger than the sum of its proper divisors (24090707695).

64006380305 is a wasteful number, since it uses less digits than its factorization.

64006380305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6602288.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 64006380305 in words is "sixty-four billion, six million, three hundred eighty thousand, three hundred five".