11235566890 has 16 divisors (see below), whose sum is σ = 20770616232. Its totient is φ = 4372761024.

The previous prime is 11235566887. The next prime is 11235566911. The reversal of 11235566890 is 9866553211.

It can be written as a sum of positive squares in 4 ways, for example, as 10995409881 + 240157009 = 104859^2 + 15497^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11235566890.

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, 15182829 + ... + 15183568.

Almost surely, 2^11235566890 is an apocalyptic number.

11235566890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11235566890 is a deficient number, since it is larger than the sum of its proper divisors (9535049342).

11235566890 is a wasteful number, since it uses less digits than its factorization.

11235566890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30366441.

The product of its (nonzero) digits is 388800, while the sum is 46.

The spelling of 11235566890 in words is "eleven billion, two hundred thirty-five million, five hundred sixty-six thousand, eight hundred ninety".