64342017215 has 16 divisors (see below), whose sum is σ = 88393438272. Its totient is φ = 44043761664.

The previous prime is 64342017203. The next prime is 64342017227. The reversal of 64342017215 is 51271024346.

It is an interprime number because it is at equal distance from previous prime (64342017203) and next prime (64342017227).

It is not a de Polignac number, because 64342017215 - 2⁴ = 64342017199 is a prime.

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

It is a Duffinian number.

It is a congruent number.

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, 1572824 + ... + 1613213.

It is an arithmetic number, because the mean of its divisors is an integer number (5524589892).

Almost surely, 2^64342017215 is an apocalyptic number.

64342017215 is a deficient number, since it is larger than the sum of its proper divisors (24051421057).

64342017215 is a wasteful number, since it uses less digits than its factorization.

64342017215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3186626.

The product of its (nonzero) digits is 40320, while the sum is 35.

The spelling of 64342017215 in words is "sixty-four billion, three hundred forty-two million, seventeen thousand, two hundred fifteen".