64270178955 has 24 divisors (see below), whose sum is σ = 111757583808. Its totient is φ = 34167908736.

The previous prime is 64270178939. The next prime is 64270178969. The reversal of 64270178955 is 55987107246.

It is not a de Polignac number, because 64270178955 - 2⁴ = 64270178939 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2267427 + ... + 2295596.

It is an arithmetic number, because the mean of its divisors is an integer number (4656565992).

Almost surely, 2^64270178955 is an apocalyptic number.

64270178955 is a deficient number, since it is larger than the sum of its proper divisors (47487404853).

64270178955 is a wasteful number, since it uses less digits than its factorization.

64270178955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4563347 (or 4563344 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 54.

The spelling of 64270178955 in words is "sixty-four billion, two hundred seventy million, one hundred seventy-eight thousand, nine hundred fifty-five".