99901509184 has 21 divisors (see below), whose sum is σ = 198247075057. Its totient is φ = 49949490304.

The previous prime is 99901509101. The next prime is 99901509187. The reversal of 99901509184 is 48190510999.

The square root of 99901509184 is 316072.

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., 21411883584 + 78489625600 = 146328^2 + 280160^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99901509187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2508822 + ... + 2548330.

Almost surely, 2^99901509184 is an apocalyptic number.

99901509184 is the 316072-nd square number.

It is an amenable number.

99901509184 is a deficient number, since it is larger than the sum of its proper divisors (98345565873).

99901509184 is an frugal number, since it uses more digits than its factorization.

99901509184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79030 (or 39511 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 55.

The spelling of 99901509184 in words is "ninety-nine billion, nine hundred one million, five hundred nine thousand, one hundred eighty-four".