66453065 has 48 divisors (see below), whose sum is σ = 98496000. Its totient is φ = 42844032.

The previous prime is 66453061. The next prime is 66453067. The reversal of 66453065 is 56035466.

It is not a de Polignac number, because 66453065 - 2² = 66453061 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (66453061) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 333836 + ... + 334034.

It is an arithmetic number, because the mean of its divisors is an integer number (2052000).

Almost surely, 2^66453065 is an apocalyptic number.

It is an amenable number.

66453065 is a deficient number, since it is larger than the sum of its proper divisors (32042935).

66453065 is a wasteful number, since it uses less digits than its factorization.

66453065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294 (or 287 counting only the distinct ones).

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

The square root of 66453065 is about 8151.8749377060. The cubic root of 66453065 is about 405.0466135445.

The spelling of 66453065 in words is "sixty-six million, four hundred fifty-three thousand, sixty-five".