64099123199 has 4 divisors (see below), whose sum is σ = 64469638536. Its totient is φ = 63728607864.

The previous prime is 64099123183. The next prime is 64099123211. The reversal of 64099123199 is 99132199046.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64099123199 - 2⁴ = 64099123183 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64099123199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64099123799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185257409 + ... + 185257754.

It is an arithmetic number, because the mean of its divisors is an integer number (16117409634).

Almost surely, 2^64099123199 is an apocalyptic number.

64099123199 is a deficient number, since it is larger than the sum of its proper divisors (370515337).

64099123199 is a wasteful number, since it uses less digits than its factorization.

64099123199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370515336.

The product of its (nonzero) digits is 944784, while the sum is 53.

The spelling of 64099123199 in words is "sixty-four billion, ninety-nine million, one hundred twenty-three thousand, one hundred ninety-nine".