66456053 has 8 divisors (see below), whose sum is σ = 70063200. Its totient is φ = 62859888.

The previous prime is 66456017. The next prime is 66456067. The reversal of 66456053 is 35065466.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66456053 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 (66456253) 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, 11675 + ... + 16407.

It is an arithmetic number, because the mean of its divisors is an integer number (8757900).

Almost surely, 2^66456053 is an apocalyptic number.

It is an amenable number.

66456053 is a deficient number, since it is larger than the sum of its proper divisors (3607147).

66456053 is a wasteful number, since it uses less digits than its factorization.

66456053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5491.

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 66456053 is about 8152.0582063673. The cubic root of 66456053 is about 405.0526843011.

The spelling of 66456053 in words is "sixty-six million, four hundred fifty-six thousand, fifty-three".