11151660990 has 32 divisors (see below), whose sum is σ = 26768395296. Its totient is φ = 2973286400.

The previous prime is 11151660983. The next prime is 11151660997. The reversal of 11151660990 is 9906615111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11151660983) and next prime (11151660997).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11151660997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177790 + ... + 232190.

It is an arithmetic number, because the mean of its divisors is an integer number (836512353).

Almost surely, 2^11151660990 is an apocalyptic number.

11151660990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11151660990 is an abundant number, since it is smaller than the sum of its proper divisors (15616734306).

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

11151660990 is a wasteful number, since it uses less digits than its factorization.

11151660990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61244.

The product of its (nonzero) digits is 14580, while the sum is 39.

The spelling of 11151660990 in words is "eleven billion, one hundred fifty-one million, six hundred sixty thousand, nine hundred ninety".