64660453 has 8 divisors (see below), whose sum is σ = 75964896. Its totient is φ = 54260400.

The previous prime is 64660447. The next prime is 64660457. The reversal of 64660453 is 35406646.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64660453 - 2⁹ = 64659941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64660457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225943 + ... + 226228.

It is an arithmetic number, because the mean of its divisors is an integer number (9495612).

Almost surely, 2^64660453 is an apocalyptic number.

It is an amenable number.

64660453 is a deficient number, since it is larger than the sum of its proper divisors (11304443).

64660453 is a wasteful number, since it uses less digits than its factorization.

64660453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452195.

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 64660453 is about 8041.1723647737. The cubic root of 64660453 is about 401.3712376468.

The spelling of 64660453 in words is "sixty-four million, six hundred sixty thousand, four hundred fifty-three".