100660507 has 4 divisors (see below), whose sum is σ = 100725136. Its totient is φ = 100595880.

The previous prime is 100660477. The next prime is 100660523. The reversal of 100660507 is 705066001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 705066001 = 389 ⋅1812509.

It is a cyclic number.

It is not a de Polignac number, because 100660507 - 2²³ = 92271899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100660577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29919 + ... + 33112.

It is an arithmetic number, because the mean of its divisors is an integer number (25181284).

Almost surely, 2^100660507 is an apocalyptic number.

100660507 is a deficient number, since it is larger than the sum of its proper divisors (64629).

100660507 is an equidigital number, since it uses as much as digits as its factorization.

100660507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64628.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 100660507 is about 10032.9709956722. The cubic root of 100660507 is about 465.1785755715.

The spelling of 100660507 in words is "one hundred million, six hundred sixty thousand, five hundred seven".