11355566890 has 16 divisors (see below), whose sum is σ = 20457616608. Its totient is φ = 4538316496.

The previous prime is 11355566869. The next prime is 11355566899. The reversal of 11355566890 is 9866555311.

It is not an unprimeable number, because it can be changed into a prime (11355566899) 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, 476572 + ... + 499831.

It is an arithmetic number, because the mean of its divisors is an integer number (1278601038).

Almost surely, 2^11355566890 is an apocalyptic number.

11355566890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11355566890 is a deficient number, since it is larger than the sum of its proper divisors (9102049718).

11355566890 is a wasteful number, since it uses less digits than its factorization.

11355566890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977573.

The product of its (nonzero) digits is 972000, while the sum is 49.

The spelling of 11355566890 in words is "eleven billion, three hundred fifty-five million, five hundred sixty-six thousand, eight hundred ninety".