100551055061091 has 32 divisors (see below), whose sum is σ = 141399933050880. Its totient is φ = 63382008362400.

The previous prime is 100551055061089. The next prime is 100551055061227. The reversal of 100551055061091 is 190160550155001.

It is not a de Polignac number, because 100551055061091 - 2¹ = 100551055061089 is a prime.

It is a super-2 number, since 2×100551055061091² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100551055060091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59979706 + ... + 61633328.

It is an arithmetic number, because the mean of its divisors is an integer number (4418747907840).

Almost surely, 2^{100551055061091} is an apocalyptic number.

100551055061091 is a deficient number, since it is larger than the sum of its proper divisors (40848877989789).

100551055061091 is a wasteful number, since it uses less digits than its factorization.

100551055061091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655727.

The product of its (nonzero) digits is 33750, while the sum is 39.

The spelling of 100551055061091 in words is "one hundred trillion, five hundred fifty-one billion, fifty-five million, sixty-one thousand, ninety-one".