99681096465 has 48 divisors (see below), whose sum is σ = 176098732992. Its totient is φ = 52142942592.

The previous prime is 99681096451. The next prime is 99681096467. The reversal of 99681096465 is 56469018699.

99681096465 is a `hidden beast` number, since 9 + 9 + 6 + 81 + 0 + 96 + 465 = 666.

It is not a de Polignac number, because 99681096465 - 2¹⁰ = 99681095441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99681096467) 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 47 ways as a sum of consecutive naturals, for example, 10687294 + ... + 10696616.

It is an arithmetic number, because the mean of its divisors is an integer number (3668723604).

Almost surely, 2^99681096465 is an apocalyptic number.

It is an amenable number.

99681096465 is a deficient number, since it is larger than the sum of its proper divisors (76417636527).

99681096465 is a wasteful number, since it uses less digits than its factorization.

99681096465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13870 (or 13867 counting only the distinct ones).

The product of its (nonzero) digits is 25194240, while the sum is 63.

The spelling of 99681096465 in words is "ninety-nine billion, six hundred eighty-one million, ninety-six thousand, four hundred sixty-five".