66496873 has 2 divisors, whose sum is σ = 66496874. Its totient is φ = 66496872.

The previous prime is 66496853. The next prime is 66496901. The reversal of 66496873 is 37869466.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61261929 + 5234944 = 7827^2 + 2288^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66496873 is a prime.

It is not a weakly prime, because it can be changed into another prime (66496813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33248436 + 33248437.

It is an arithmetic number, because the mean of its divisors is an integer number (33248437).

Almost surely, 2^66496873 is an apocalyptic number.

It is an amenable number.

66496873 is a deficient number, since it is larger than the sum of its proper divisors (1).

66496873 is an equidigital number, since it uses as much as digits as its factorization.

66496873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 49.

The square root of 66496873 is about 8154.5614842246. The cubic root of 66496873 is about 405.1356005826.

The spelling of 66496873 in words is "sixty-six million, four hundred ninety-six thousand, eight hundred seventy-three".