100551105560505 has 16 divisors (see below), whose sum is σ = 161153070376320. Its totient is φ = 53536822472448.

The previous prime is 100551105560501. The next prime is 100551105560513. The reversal of 100551105560505 is 505065501155001.

It is not a de Polignac number, because 100551105560505 - 2² = 100551105560501 is a prime.

It is a super-2 number, since 2×100551105560505² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100551105560501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5652104965 + ... + 5652122754.

It is an arithmetic number, because the mean of its divisors is an integer number (10072066898520).

Almost surely, 2^{100551105560505} is an apocalyptic number.

100551105560505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100551105560505 is a deficient number, since it is larger than the sum of its proper divisors (60601964815815).

100551105560505 is a wasteful number, since it uses less digits than its factorization.

100551105560505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11304228320.

The product of its (nonzero) digits is 93750, while the sum is 39.

The spelling of 100551105560505 in words is "one hundred trillion, five hundred fifty-one billion, one hundred five million, five hundred sixty thousand, five hundred five".