100001550551555 has 32 divisors (see below), whose sum is σ = 125562584678400. Its totient is φ = 76366396454400.

The previous prime is 100001550551533. The next prime is 100001550551593. The reversal of 100001550551555 is 555155055100001.

It is not a de Polignac number, because 100001550551555 - 2⁸ = 100001550551299 is a prime.

It is a super-2 number, since 2×100001550551555² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8664011 + ... + 16585179.

It is an arithmetic number, because the mean of its divisors is an integer number (3923830771200).

Almost surely, 2^{100001550551555} is an apocalyptic number.

100001550551555 is a deficient number, since it is larger than the sum of its proper divisors (25561034126845).

100001550551555 is a wasteful number, since it uses less digits than its factorization.

100001550551555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7922315.

The product of its (nonzero) digits is 78125, while the sum is 38.

The spelling of 100001550551555 in words is "one hundred trillion, one billion, five hundred fifty million, five hundred fifty-one thousand, five hundred fifty-five".