100625406555 has 8 divisors (see below), whose sum is σ = 161000650512. Its totient is φ = 53666883488.

The previous prime is 100625406521. The next prime is 100625406599. The reversal of 100625406555 is 555604526001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 100625406555 - 2²¹ = 100623309403 is a prime.

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, 3354180204 + ... + 3354180233.

It is an arithmetic number, because the mean of its divisors is an integer number (20125081314).

Almost surely, 2^100625406555 is an apocalyptic number.

100625406555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

100625406555 is a deficient number, since it is larger than the sum of its proper divisors (60375243957).

100625406555 is an equidigital number, since it uses as much as digits as its factorization.

100625406555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6708360445.

The product of its (nonzero) digits is 180000, while the sum is 39.

The spelling of 100625406555 in words is "one hundred billion, six hundred twenty-five million, four hundred six thousand, five hundred fifty-five".