100555005551 has 64 divisors (see below), whose sum is σ = 138829565952. Its totient is φ = 70295040000.

The previous prime is 100555005533. The next prime is 100555005563. The reversal of 100555005551 is 155500555001.

It is a cyclic number.

It is not a de Polignac number, because 100555005551 - 2¹⁰ = 100555004527 is a prime.

It is a super-2 number, since 2×100555005551² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100555005571) 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, 11117591 + ... + 11126631.

It is an arithmetic number, because the mean of its divisors is an integer number (2169211968).

Almost surely, 2^100555005551 is an apocalyptic number.

100555005551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

100555005551 is a deficient number, since it is larger than the sum of its proper divisors (38274560401).

100555005551 is a wasteful number, since it uses less digits than its factorization.

100555005551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9384.

The product of its (nonzero) digits is 15625, while the sum is 32.

The spelling of 100555005551 in words is "one hundred billion, five hundred fifty-five million, five thousand, five hundred fifty-one".