66098799 has 48 divisors (see below), whose sum is σ = 106666560. Its totient is φ = 39191040.

The previous prime is 66098741. The next prime is 66098827. The reversal of 66098799 is 99789066.

It is not a de Polignac number, because 66098799 - 2⁷ = 66098671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66098719) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 606357 + ... + 606465.

It is an arithmetic number, because the mean of its divisors is an integer number (2222220).

Almost surely, 2^66098799 is an apocalyptic number.

66098799 is a deficient number, since it is larger than the sum of its proper divisors (40567761).

66098799 is a wasteful number, since it uses less digits than its factorization.

66098799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The square root of 66098799 is about 8130.1167888291. The cubic root of 66098799 is about 404.3255532786.

The spelling of 66098799 in words is "sixty-six million, ninety-eight thousand, seven hundred ninety-nine".