100555551061 has 8 divisors (see below), whose sum is σ = 115094493824. Its totient is φ = 86060074320.

The previous prime is 100555551053. The next prime is 100555551067. The reversal of 100555551061 is 160155555001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100555551061 - 2³ = 100555551053 is a prime.

It is a super-2 number, since 2×100555551061² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100555551067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10861545 + ... + 10870798.

It is an arithmetic number, because the mean of its divisors is an integer number (14386811728).

Almost surely, 2^100555551061 is an apocalyptic number.

It is an amenable number.

100555551061 is a deficient number, since it is larger than the sum of its proper divisors (14538942763).

100555551061 is an equidigital number, since it uses as much as digits as its factorization.

100555551061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21733011.

The product of its (nonzero) digits is 18750, while the sum is 34.

The spelling of 100555551061 in words is "one hundred billion, five hundred fifty-five million, five hundred fifty-one thousand, sixty-one".