99670966977 has 4 divisors (see below), whose sum is σ = 132894622640. Its totient is φ = 66447311316.

The previous prime is 99670966963. The next prime is 99670966981. The reversal of 99670966977 is 77966907699.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 99670966977 - 2²³ = 99662578369 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99670966899 and 99670966908.

It is not an unprimeable number, because it can be changed into a prime (99670966907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16611827827 + ... + 16611827832.

It is an arithmetic number, because the mean of its divisors is an integer number (33223655660).

Almost surely, 2^99670966977 is an apocalyptic number.

It is an amenable number.

99670966977 is a deficient number, since it is larger than the sum of its proper divisors (33223655663).

99670966977 is a wasteful number, since it uses less digits than its factorization.

99670966977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33223655662.

The product of its (nonzero) digits is 486091368, while the sum is 75.

The spelling of 99670966977 in words is "ninety-nine billion, six hundred seventy million, nine hundred sixty-six thousand, nine hundred seventy-seven".