11042155690 has 32 divisors (see below), whose sum is σ = 21055522320. Its totient is φ = 4154978304.

The previous prime is 11042155687. The next prime is 11042155693. The reversal of 11042155690 is 9655124011.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11042155687) and next prime (11042155693).

It can be written as a sum of positive squares in 8 ways, for example, as 4012842409 + 7029313281 = 63347^2 + 83841^2 .

It is a super-2 number, since 2×11042155690² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (11042155693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 350926 + ... + 381094.

Almost surely, 2^11042155690 is an apocalyptic number.

11042155690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11042155690 is a deficient number, since it is larger than the sum of its proper divisors (10013366630).

11042155690 is a wasteful number, since it uses less digits than its factorization.

11042155690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32346.

The product of its (nonzero) digits is 10800, while the sum is 34.

The spelling of 11042155690 in words is "eleven billion, forty-two million, one hundred fifty-five thousand, six hundred ninety".