1100185201855 has 8 divisors (see below), whose sum is σ = 1320311277072. Its totient is φ = 880088804928.

The previous prime is 1100185201813. The next prime is 1100185201859. The reversal of 1100185201855 is 5581025810011.

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 1100185201855 - 2¹⁵ = 1100185169087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100185201859) 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, 7337934 + ... + 7486363.

It is an arithmetic number, because the mean of its divisors is an integer number (165038909634).

Almost surely, 2^{1100185201855} is an apocalyptic number.

1100185201855 is a deficient number, since it is larger than the sum of its proper divisors (220126075217).

1100185201855 is a wasteful number, since it uses less digits than its factorization.

1100185201855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14839145.

The product of its (nonzero) digits is 16000, while the sum is 37.

The spelling of 1100185201855 in words is "one trillion, one hundred billion, one hundred eighty-five million, two hundred one thousand, eight hundred fifty-five".