99995399657 has 8 divisors (see below), whose sum is σ = 100259969856. Its totient is φ = 99730894032.

The previous prime is 99995399639. The next prime is 99995399659. The reversal of 99995399657 is 75699359999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99995399657 - 2²⁰ = 99994351081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99995399659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5710838 + ... + 5728320.

It is an arithmetic number, because the mean of its divisors is an integer number (12532496232).

Almost surely, 2^99995399657 is an apocalyptic number.

It is an amenable number.

99995399657 is a deficient number, since it is larger than the sum of its proper divisors (264570199).

99995399657 is a wasteful number, since it uses less digits than its factorization.

99995399657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32287.

The product of its digits is 1674039150, while the sum is 80.

The spelling of 99995399657 in words is "ninety-nine billion, nine hundred ninety-five million, three hundred ninety-nine thousand, six hundred fifty-seven".