99481575650 has 24 divisors (see below), whose sum is σ = 185070195300. Its totient is φ = 39785218560.

The previous prime is 99481575623. The next prime is 99481575653. The reversal of 99481575650 is 5657518499.

It is a Cunningham number, because it is equal to 315407²+1.

It can be written as a sum of positive squares in 6 ways, for example, as 10272430609 + 89209145041 = 101353^2 + 298679^2 .

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 99481575650.

It is not an unprimeable number, because it can be changed into a prime (99481575653) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89882 + ... + 455018.

Almost surely, 2^99481575650 is an apocalyptic number.

99481575650 is a deficient number, since it is larger than the sum of its proper divisors (85588619650).

99481575650 is a wasteful number, since it uses less digits than its factorization.

99481575650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370598 (or 370593 counting only the distinct ones).

The product of its (nonzero) digits is 13608000, while the sum is 59.

The spelling of 99481575650 in words is "ninety-nine billion, four hundred eighty-one million, five hundred seventy-five thousand, six hundred fifty".