100804648665 has 64 divisors (see below), whose sum is σ = 191430936576. Its totient is φ = 44338516992.

The previous prime is 100804648663. The next prime is 100804648667. The reversal of 100804648665 is 566846408001.

It is an interprime number because it is at equal distance from previous prime (100804648663) and next prime (100804648667).

It is not a de Polignac number, because 100804648665 - 2¹ = 100804648663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100804648661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 135889 + ... + 469121.

It is an arithmetic number, because the mean of its divisors is an integer number (2991108384).

Almost surely, 2^100804648665 is an apocalyptic number.

100804648665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100804648665 is a deficient number, since it is larger than the sum of its proper divisors (90626287911).

100804648665 is a wasteful number, since it uses less digits than its factorization.

100804648665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333358.

The product of its (nonzero) digits is 1105920, while the sum is 48.

The spelling of 100804648665 in words is "one hundred billion, eight hundred four million, six hundred forty-eight thousand, six hundred sixty-five".