99799455737456 has 40 divisors (see below), whose sum is σ = 195208498110960. Its totient is φ = 49423259984384.

The previous prime is 99799455737441. The next prime is 99799455737461. The reversal of 99799455737456 is 65473755499799.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2408210 + ... + 14331726.

It is an arithmetic number, because the mean of its divisors is an integer number (4880212452774).

Almost surely, 2^{99799455737456} is an apocalyptic number.

It is an amenable number.

99799455737456 is a deficient number, since it is larger than the sum of its proper divisors (95409042373504).

99799455737456 is a wasteful number, since it uses less digits than its factorization.

99799455737456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11928521 (or 11928515 counting only the distinct ones).

The product of its digits is 81015228000, while the sum is 89.

The spelling of 99799455737456 in words is "ninety-nine trillion, seven hundred ninety-nine billion, four hundred fifty-five million, seven hundred thirty-seven thousand, four hundred fifty-six".