64166006615 has 8 divisors (see below), whose sum is σ = 79080267840. Its totient is φ = 49945432032.

The previous prime is 64166006599. The next prime is 64166006627. The reversal of 64166006615 is 51660066146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64166006615 - 2⁴ = 64166006599 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173421455 + ... + 173421824.

It is an arithmetic number, because the mean of its divisors is an integer number (9885033480).

Almost surely, 2^64166006615 is an apocalyptic number.

64166006615 is a deficient number, since it is larger than the sum of its proper divisors (14914261225).

64166006615 is a wasteful number, since it uses less digits than its factorization.

64166006615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346843321.

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 64166006615 in words is "sixty-four billion, one hundred sixty-six million, six thousand, six hundred fifteen".