64154656799 has 4 divisors (see below), whose sum is σ = 64156923240. Its totient is φ = 64152390360.

The previous prime is 64154656781. The next prime is 64154656801. The reversal of 64154656799 is 99765645146.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64154656799 - 2³² = 59859689503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64154659799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1090217 + ... + 1147554.

It is an arithmetic number, because the mean of its divisors is an integer number (16039230810).

Almost surely, 2^64154656799 is an apocalyptic number.

64154656799 is a deficient number, since it is larger than the sum of its proper divisors (2266441).

64154656799 is a wasteful number, since it uses less digits than its factorization.

64154656799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2266440.

The product of its digits is 48988800, while the sum is 62.

The spelling of 64154656799 in words is "sixty-four billion, one hundred fifty-four million, six hundred fifty-six thousand, seven hundred ninety-nine".