99472113665 has 16 divisors (see below), whose sum is σ = 123517230480. Its totient is φ = 76812099840.

The previous prime is 99472113659. The next prime is 99472113677. The reversal of 99472113665 is 56631127499.

It is a Cunningham number, because it is equal to 315392²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 1367224576 + 98104889089 = 36976^2 + 313217^2 .

It is not a de Polignac number, because 99472113665 - 2¹⁶ = 99472048129 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 433055 + ... + 621675.

It is an arithmetic number, because the mean of its divisors is an integer number (7719826905).

It is a Proth number, since it is equal to 5929 ⋅ 2²⁴ + 1 and 5929 < 2²⁴.

Almost surely, 2^99472113665 is an apocalyptic number.

It is an amenable number.

99472113665 is a deficient number, since it is larger than the sum of its proper divisors (24045116815).

99472113665 is a wasteful number, since it uses less digits than its factorization.

99472113665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192292.

The product of its digits is 2449440, while the sum is 53.

The spelling of 99472113665 in words is "ninety-nine billion, four hundred seventy-two million, one hundred thirteen thousand, six hundred sixty-five".