101105551105561 has 8 divisors (see below), whose sum is σ = 102087696784320. Its totient is φ = 100123415780592.

The previous prime is 101105551105553. The next prime is 101105551105577. The reversal of 101105551105561 is 165501155501101.

It is a happy number.

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 101105551105561 - 2³ = 101105551105553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101105551105561.

It is not an unprimeable number, because it can be changed into a prime (101105551105501) 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, 17813835 + ... + 22793503.

It is an arithmetic number, because the mean of its divisors is an integer number (12760962098040).

Almost surely, 2^{101105551105561} is an apocalyptic number.

It is an amenable number.

101105551105561 is a deficient number, since it is larger than the sum of its proper divisors (982145678759).

101105551105561 is a wasteful number, since it uses less digits than its factorization.

101105551105561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5176895.

The product of its (nonzero) digits is 18750, while the sum is 37.

The spelling of 101105551105561 in words is "one hundred one trillion, one hundred five billion, five hundred fifty-one million, one hundred five thousand, five hundred sixty-one".