99540707761 has 32 divisors (see below), whose sum is σ = 116638156800. Its totient is φ = 83995704000.

The previous prime is 99540707621. The next prime is 99540707789. The reversal of 99540707761 is 16770704599.

It is a 3-Lehmer number, since φ(99540707761) divides (99540707761-1)³.

It is a cyclic number.

It is a Carmichael number.

It is not a de Polignac number, because 99540707761 - 2²⁹ = 99003836849 is a prime.

It is a deceptive number, since it divides R_99540707760.

It is not an unprimeable number, because it can be changed into a prime (99540707261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2139931 + ... + 2185951.

It is an arithmetic number, because the mean of its divisors is an integer number (3644942400).

It is a Poulet number, since it divides 2^99540707760-1.

Almost surely, 2^99540707761 is an apocalyptic number.

It is an amenable number.

99540707761 is a deficient number, since it is larger than the sum of its proper divisors (17097449039).

99540707761 is a wasteful number, since it uses less digits than its factorization.

99540707761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46261.

The product of its (nonzero) digits is 3333960, while the sum is 55.

The spelling of 99540707761 in words is "ninety-nine billion, five hundred forty million, seven hundred seven thousand, seven hundred sixty-one".