99566698328929 has 16 divisors (see below), whose sum is σ = 107702673926400. Its totient is φ = 91498900302720.

The previous prime is 99566698328921. The next prime is 99566698328947. The reversal of 99566698328929 is 92982389666599.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 99566698328929 - 2³ = 99566698328921 is a prime.

It is a super-2 number, since 2×99566698328929² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99566698328921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68925789 + ... + 70355509.

It is an arithmetic number, because the mean of its divisors is an integer number (6731417120400).

Almost surely, 2^{99566698328929} is an apocalyptic number.

It is an amenable number.

99566698328929 is a deficient number, since it is larger than the sum of its proper divisors (8135975597471).

99566698328929 is a wasteful number, since it uses less digits than its factorization.

99566698328929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1453560.

The product of its digits is 48977602560, while the sum is 91.

The spelling of 99566698328929 in words is "ninety-nine trillion, five hundred sixty-six billion, six hundred ninety-eight million, three hundred twenty-eight thousand, nine hundred twenty-nine".