66100499 has 2 divisors, whose sum is σ = 66100500. Its totient is φ = 66100498.

The previous prime is 66100429. The next prime is 66100501. The reversal of 66100499 is 99400166.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66100499 - 2¹² = 66096403 is a prime.

Together with 66100501, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (66100429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33050249 + 33050250.

It is an arithmetic number, because the mean of its divisors is an integer number (33050250).

Almost surely, 2^66100499 is an apocalyptic number.

66100499 is a deficient number, since it is larger than the sum of its proper divisors (1).

66100499 is an equidigital number, since it uses as much as digits as its factorization.

66100499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 66100499 is about 8130.2213377005. The cubic root of 66100499 is about 404.3290195420.

The spelling of 66100499 in words is "sixty-six million, one hundred thousand, four hundred ninety-nine".