64345455 has 16 divisors (see below), whose sum is σ = 114392160. Its totient is φ = 34317504.

The previous prime is 64345451. The next prime is 64345481. The reversal of 64345455 is 55454346.

64345455 is a `hidden beast` number, since 643 + 4 + 5 + 4 + 5 + 5 = 666.

It is not a de Polignac number, because 64345455 - 2² = 64345451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64345451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238182 + ... + 238451.

It is an arithmetic number, because the mean of its divisors is an integer number (7149510).

Almost surely, 2^64345455 is an apocalyptic number.

64345455 is a deficient number, since it is larger than the sum of its proper divisors (50046705).

64345455 is a wasteful number, since it uses less digits than its factorization.

64345455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476647 (or 476641 counting only the distinct ones).

The product of its digits is 144000, while the sum is 36.

The square root of 64345455 is about 8021.5618803323. The cubic root of 64345455 is about 400.7184068731.

The spelling of 64345455 in words is "sixty-four million, three hundred forty-five thousand, four hundred fifty-five".