64567222617 has 16 divisors (see below), whose sum is σ = 86943933440. Its totient is φ = 42617841552.

The previous prime is 64567222613. The next prime is 64567222703. The reversal of 64567222617 is 71622276546.

It is not a de Polignac number, because 64567222617 - 2² = 64567222613 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64567222613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1632684 + ... + 1671762.

It is an arithmetic number, because the mean of its divisors is an integer number (5433995840).

Almost surely, 2^64567222617 is an apocalyptic number.

It is an amenable number.

64567222617 is a deficient number, since it is larger than the sum of its proper divisors (22376710823).

64567222617 is a wasteful number, since it uses less digits than its factorization.

64567222617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44532.

The product of its digits is 1693440, while the sum is 48.

The spelling of 64567222617 in words is "sixty-four billion, five hundred sixty-seven million, two hundred twenty-two thousand, six hundred seventeen".