99651544083844 has 81 divisors (see below), whose sum is σ = 184779714308133. Its totient is φ = 47017387857024.

The previous prime is 99651544083841. The next prime is 99651544083869. The reversal of 99651544083844 is 44838044515699.

The square root of 99651544083844 is 9982562.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 61274609396100 + 38376934687744 = 7827810^2 + 6194912^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99651544083841) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 168046448412 + ... + 168046449004.

Almost surely, 2^{99651544083844} is an apocalyptic number.

99651544083844 is the 9982562-nd square number.

It is an amenable number.

99651544083844 is a deficient number, since it is larger than the sum of its proper divisors (85128170224289).

99651544083844 is an frugal number, since it uses more digits than its factorization.

99651544083844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114 (or 1057 counting only the distinct ones).

The product of its (nonzero) digits is 597196800, while the sum is 70.

The spelling of 99651544083844 in words is "ninety-nine trillion, six hundred fifty-one billion, five hundred forty-four million, eighty-three thousand, eight hundred forty-four".