64470455164 has 36 divisors (see below), whose sum is σ = 120451522464. Its totient is φ = 30177613312.

The previous prime is 64470455143. The next prime is 64470455167. The reversal of 64470455164 is 46155407446.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64470455167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 224677 + ... + 423580.

It is an arithmetic number, because the mean of its divisors is an integer number (3345875624).

Almost surely, 2^64470455164 is an apocalyptic number.

It is an amenable number.

64470455164 is a deficient number, since it is larger than the sum of its proper divisors (55981067300).

64470455164 is a wasteful number, since it uses less digits than its factorization.

64470455164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648354 (or 648329 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 46.

The spelling of 64470455164 in words is "sixty-four billion, four hundred seventy million, four hundred fifty-five thousand, one hundred sixty-four".