9164557899 has 24 divisors (see below), whose sum is σ = 15134493920. Its totient is φ = 5234917248.

The previous prime is 9164557889. The next prime is 9164557937. The reversal of 9164557899 is 9987554619.

9164557899 is a `hidden beast` number, since 9 + 16 + 45 + 578 + 9 + 9 = 666.

It is not a de Polignac number, because 9164557899 - 2⁷ = 9164557771 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (9164557889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 150207 + ... + 202215.

Almost surely, 2^9164557899 is an apocalyptic number.

9164557899 is a deficient number, since it is larger than the sum of its proper divisors (5969936021).

9164557899 is a wasteful number, since it uses less digits than its factorization.

9164557899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54819 (or 54816 counting only the distinct ones).

The product of its digits is 24494400, while the sum is 63.

The square root of 9164557899 is about 95731.6974622303. The cubic root of 9164557899 is about 2092.6848958975.

The spelling of 9164557899 in words is "nine billion, one hundred sixty-four million, five hundred fifty-seven thousand, eight hundred ninety-nine".