66313065 has 96 divisors (see below), whose sum is σ = 136187136. Its totient is φ = 26956800.

The previous prime is 66313057. The next prime is 66313067. The reversal of 66313065 is 56031366.

It is not a de Polignac number, because 66313065 - 2³ = 66313057 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66313067) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 656515 + ... + 656615.

It is an arithmetic number, because the mean of its divisors is an integer number (1418616).

Almost surely, 2^66313065 is an apocalyptic number.

66313065 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

66313065 is an abundant number, since it is smaller than the sum of its proper divisors (69874071).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66313065 is a wasteful number, since it uses less digits than its factorization.

66313065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 66313065 is about 8143.2834286914. The cubic root of 66313065 is about 404.7619695644.

The spelling of 66313065 in words is "sixty-six million, three hundred thirteen thousand, sixty-five".