11155090157785 has 16 divisors (see below), whose sum is σ = 15302947761792. Its totient is φ = 7646935478400.

The previous prime is 11155090157737. The next prime is 11155090157837. The reversal of 11155090157785 is 58775109055111.

It is not a de Polignac number, because 11155090157785 - 2¹⁹ = 11155089633497 is a prime.

It is a super-2 number, since 2×11155090157785² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47155356 + ... + 47391325.

It is an arithmetic number, because the mean of its divisors is an integer number (956434235112).

Almost surely, 2^{11155090157785} is an apocalyptic number.

It is an amenable number.

11155090157785 is a deficient number, since it is larger than the sum of its proper divisors (4147857604007).

11155090157785 is an equidigital number, since it uses as much as digits as its factorization.

11155090157785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94550064.

The product of its (nonzero) digits is 2205000, while the sum is 55.

The spelling of 11155090157785 in words is "eleven trillion, one hundred fifty-five billion, ninety million, one hundred fifty-seven thousand, seven hundred eighty-five".