99667776005 has 12 divisors (see below), whose sum is σ = 139128079500. Its totient is φ = 68343617664.

The previous prime is 99667775981. The next prime is 99667776017. The reversal of 99667776005 is 50067776699.

It can be written as a sum of positive squares in 2 ways, for example, as 43053760036 + 56614015969 = 207494^2 + 237937^2 .

It is not a de Polignac number, because 99667776005 - 2¹⁶ = 99667710469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203403380 + ... + 203403869.

It is an arithmetic number, because the mean of its divisors is an integer number (11594006625).

Almost surely, 2^99667776005 is an apocalyptic number.

It is an amenable number.

99667776005 is a deficient number, since it is larger than the sum of its proper divisors (39460303495).

99667776005 is a wasteful number, since it uses less digits than its factorization.

99667776005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406807268 (or 406807261 counting only the distinct ones).

The product of its (nonzero) digits is 30005640, while the sum is 62.

The spelling of 99667776005 in words is "ninety-nine billion, six hundred sixty-seven million, seven hundred seventy-six thousand, five".