66314501 has 16 divisors (see below), whose sum is σ = 78055488. Its totient is φ = 55660800.

The previous prime is 66314491. The next prime is 66314623. The reversal of 66314501 is 10541366.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66314501 is a prime.

It is a super-2 number, since 2×66314501² = 8795226085758002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66314201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6566 + ... + 13256.

It is an arithmetic number, because the mean of its divisors is an integer number (4878468).

Almost surely, 2^66314501 is an apocalyptic number.

It is an amenable number.

66314501 is a deficient number, since it is larger than the sum of its proper divisors (11740987).

66314501 is a wasteful number, since it uses less digits than its factorization.

66314501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6772.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 66314501 is about 8143.3715990369. The cubic root of 66314501 is about 404.7648912310.

Adding to 66314501 its reverse (10541366), we get a palindrome (76855867).

The spelling of 66314501 in words is "sixty-six million, three hundred fourteen thousand, five hundred one".