11633229990 has 32 divisors (see below), whose sum is σ = 31021947360. Its totient is φ = 3102194592.

The previous prime is 11633229989. The next prime is 11633229991. The reversal of 11633229990 is 9992233611.

11633229990 is a `hidden beast` number, since 1 + 1 + 633 + 2 + 2 + 9 + 9 + 9 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (11633229989) and next prime (11633229991).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11633229991) 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, 21542749 + ... + 21543288.

It is an arithmetic number, because the mean of its divisors is an integer number (969435855).

Almost surely, 2^11633229990 is an apocalyptic number.

11633229990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11633229990 is an abundant number, since it is smaller than the sum of its proper divisors (19388717370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11633229990 is a wasteful number, since it uses less digits than its factorization.

11633229990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43086053 (or 43086047 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 45.

The spelling of 11633229990 in words is "eleven billion, six hundred thirty-three million, two hundred twenty-nine thousand, nine hundred ninety".