105601100005551 has 4 divisors (see below), whose sum is σ = 140801466674072. Its totient is φ = 70400733337032.

The previous prime is 105601100005537. The next prime is 105601100005573. The reversal of 105601100005551 is 155500001106501.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 105601100005551 - 2¹⁵ = 105601099972783 is a prime.

It is a super-2 number, since 2×105601100005551² (a number of 29 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 (105601100005591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17600183334256 + ... + 17600183334261.

It is an arithmetic number, because the mean of its divisors is an integer number (35200366668518).

Almost surely, 2^{105601100005551} is an apocalyptic number.

105601100005551 is a deficient number, since it is larger than the sum of its proper divisors (35200366668521).

105601100005551 is an equidigital number, since it uses as much as digits as its factorization.

105601100005551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35200366668520.

The product of its (nonzero) digits is 3750, while the sum is 30.

The spelling of 105601100005551 in words is "one hundred five trillion, six hundred one billion, one hundred million, five thousand, five hundred fifty-one".