100664107491 has 8 divisors (see below), whose sum is σ = 134251332880. Its totient is φ = 67093143552.

The previous prime is 100664107477. The next prime is 100664107507. The reversal of 100664107491 is 194701466001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100664107491 - 2²³ = 100655718883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100664157491) 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 7 ways as a sum of consecutive naturals, for example, 4050910 + ... + 4075683.

It is an arithmetic number, because the mean of its divisors is an integer number (16781416610).

Almost surely, 2^100664107491 is an apocalyptic number.

100664107491 is a deficient number, since it is larger than the sum of its proper divisors (33587225389).

100664107491 is an equidigital number, since it uses as much as digits as its factorization.

100664107491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8130725.

The product of its (nonzero) digits is 36288, while the sum is 39.

The spelling of 100664107491 in words is "one hundred billion, six hundred sixty-four million, one hundred seven thousand, four hundred ninety-one".