100551505005605 has 8 divisors (see below), whose sum is σ = 120699881698200. Its totient is φ = 80415820210176.

The previous prime is 100551505005559. The next prime is 100551505005613. The reversal of 100551505005605 is 506500505155001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 47374711619041 + 53176793386564 = 6882929^2 + 7292242^2 .

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 100551505005605 - 2⁴⁶ = 30182760827941 is a prime.

It is a super-2 number, since 2×100551505005605² (a number of 29 digits) contains 22 as substring.

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, 3172956860 + ... + 3172988549.

It is an arithmetic number, because the mean of its divisors is an integer number (15087485212275).

Almost surely, 2^{100551505005605} is an apocalyptic number.

It is an amenable number.

100551505005605 is a deficient number, since it is larger than the sum of its proper divisors (20148376692595).

100551505005605 is an equidigital number, since it uses as much as digits as its factorization.

100551505005605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6345948583.

The product of its (nonzero) digits is 93750, while the sum is 38.

The spelling of 100551505005605 in words is "one hundred trillion, five hundred fifty-one billion, five hundred five million, five thousand, six hundred five".