1100015661055 has 8 divisors (see below), whose sum is σ = 1320039800352. Its totient is φ = 879998524128.

The previous prime is 1100015661011. The next prime is 1100015661067. The reversal of 1100015661055 is 5501665100011.

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 1100015661055 - 2³⁷ = 962576707583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1398552 + ... + 2038621.

It is an arithmetic number, because the mean of its divisors is an integer number (165004975044).

Almost surely, 2^{1100015661055} is an apocalyptic number.

1100015661055 is a deficient number, since it is larger than the sum of its proper divisors (220024139297).

1100015661055 is an equidigital number, since it uses as much as digits as its factorization.

1100015661055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3501185.

The product of its (nonzero) digits is 4500, while the sum is 31.

The spelling of 1100015661055 in words is "one trillion, one hundred billion, fifteen million, six hundred sixty-one thousand, fifty-five".