100555005505455 has 40 divisors (see below), whose sum is σ = 180254887221024. Its totient is φ = 53629119316800.

The previous prime is 100555005505429. The next prime is 100555005505457. The reversal of 100555005505455 is 554505500555001.

100555005505455 is a `hidden beast` number, since 1 + 0 + 0 + 5 + 5 + 50 + 0 + 5 + 50 + 545 + 5 = 666.

It is not a de Polignac number, because 100555005505455 - 2³¹ = 100552858021807 is a prime.

It is a super-2 number, since 2×100555005505455² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 100555005505455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100555005505457) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 177731670 + ... + 178296540.

Almost surely, 2^{100555005505455} is an apocalyptic number.

100555005505455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

100555005505455 is a deficient number, since it is larger than the sum of its proper divisors (79699881715569).

100555005505455 is an equidigital number, since it uses as much as digits as its factorization.

100555005505455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004429 (or 1004420 counting only the distinct ones).

The product of its (nonzero) digits is 1562500, while the sum is 45.

The spelling of 100555005505455 in words is "one hundred trillion, five hundred fifty-five billion, five million, five hundred five thousand, four hundred fifty-five".