66372065 has 8 divisors (see below), whose sum is σ = 79904448. Its totient is φ = 52925680.

The previous prime is 66372041. The next prime is 66372101. The reversal of 66372065 is 56027366.

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

It is not a de Polignac number, because 66372065 - 2⁶ = 66372001 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19787 + ... + 22896.

It is an arithmetic number, because the mean of its divisors is an integer number (9988056).

Almost surely, 2^66372065 is an apocalyptic number.

It is an amenable number.

66372065 is a deficient number, since it is larger than the sum of its proper divisors (13532383).

66372065 is a wasteful number, since it uses less digits than its factorization.

66372065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42999.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 66372065 is about 8146.9052406420. The cubic root of 66372065 is about 404.8819754650.

The spelling of 66372065 in words is "sixty-six million, three hundred seventy-two thousand, sixty-five".