100666064645 has 8 divisors (see below), whose sum is σ = 120824732160. Its totient is φ = 80515882000.

The previous prime is 100666064581. The next prime is 100666064677. The reversal of 100666064645 is 546460666001.

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

It is not a de Polignac number, because 100666064645 - 2⁶ = 100666064581 is a prime.

It is a super-2 number, since 2×100666064645² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 100666064596 and 100666064605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2095085 + ... + 2142594.

It is an arithmetic number, because the mean of its divisors is an integer number (15103091520).

Almost surely, 2^100666064645 is an apocalyptic number.

It is an amenable number.

100666064645 is a deficient number, since it is larger than the sum of its proper divisors (20158667515).

100666064645 is an equidigital number, since it uses as much as digits as its factorization.

100666064645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4242435.

The product of its (nonzero) digits is 622080, while the sum is 44.

The spelling of 100666064645 in words is "one hundred billion, six hundred sixty-six million, sixty-four thousand, six hundred forty-five".