100420523666 has 8 divisors (see below), whose sum is σ = 153183849840. Its totient is φ = 49359240388.

The previous prime is 100420523657. The next prime is 100420523701. The reversal of 100420523666 is 666325024001.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425510576 + ... + 425510811.

It is an arithmetic number, because the mean of its divisors is an integer number (19147981230).

Almost surely, 2^100420523666 is an apocalyptic number.

100420523666 is a deficient number, since it is larger than the sum of its proper divisors (52763326174).

100420523666 is an equidigital number, since it uses as much as digits as its factorization.

100420523666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851021448.

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 100420523666 its reverse (666325024001), we get a palindrome (766745547667).

The spelling of 100420523666 in words is "one hundred billion, four hundred twenty million, five hundred twenty-three thousand, six hundred sixty-six".