64464166401 has 4 divisors (see below), whose sum is σ = 85952221872. Its totient is φ = 42976110932.

The previous prime is 64464166369. The next prime is 64464166499. The reversal of 64464166401 is 10466146446.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64464166401 - 2⁵ = 64464166369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64464166301) 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, 10744027731 + ... + 10744027736.

It is an arithmetic number, because the mean of its divisors is an integer number (21488055468).

Almost surely, 2^64464166401 is an apocalyptic number.

It is an amenable number.

64464166401 is a deficient number, since it is larger than the sum of its proper divisors (21488055471).

64464166401 is a wasteful number, since it uses less digits than its factorization.

64464166401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21488055470.

The product of its (nonzero) digits is 331776, while the sum is 42.

The spelling of 64464166401 in words is "sixty-four billion, four hundred sixty-four million, one hundred sixty-six thousand, four hundred one".