66446662315 has 16 divisors (see below), whose sum is σ = 92101471200. Its totient is φ = 45482206720.

The previous prime is 66446662313. The next prime is 66446662319. The reversal of 66446662315 is 51326664466.

It is not a de Polignac number, because 66446662315 - 2¹ = 66446662313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66446662313) 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, 35532040 + ... + 35533909.

It is an arithmetic number, because the mean of its divisors is an integer number (5756341950).

Almost surely, 2^66446662315 is an apocalyptic number.

66446662315 is a deficient number, since it is larger than the sum of its proper divisors (25654808885).

66446662315 is a wasteful number, since it uses less digits than its factorization.

66446662315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71065982.

The product of its digits is 3732480, while the sum is 49.

The spelling of 66446662315 in words is "sixty-six billion, four hundred forty-six million, six hundred sixty-two thousand, three hundred fifteen".