64606405401 has 12 divisors (see below), whose sum is σ = 93879170112. Its totient is φ = 42813026136.

The previous prime is 64606405387. The next prime is 64606405429. The reversal of 64606405401 is 10450460646.

64606405401 is a `hidden beast` number, since 6 + 4 + 6 + 0 + 640 + 5 + 4 + 0 + 1 = 666.

64606405401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64606405401 - 2¹⁷ = 64606274329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64606405471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21490981 + ... + 21493986.

It is an arithmetic number, because the mean of its divisors is an integer number (7823264176).

Almost surely, 2^64606405401 is an apocalyptic number.

It is an amenable number.

64606405401 is a deficient number, since it is larger than the sum of its proper divisors (29272764711).

64606405401 is a wasteful number, since it uses less digits than its factorization.

64606405401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42985140 (or 42985137 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 64606405401 in words is "sixty-four billion, six hundred six million, four hundred five thousand, four hundred one".