11665506330 has 32 divisors (see below), whose sum is σ = 31108017600. Its totient is φ = 3110801616.

The previous prime is 11665506299. The next prime is 11665506341. The reversal of 11665506330 is 3360556611.

11665506330 is a `hidden beast` number, since 1 + 16 + 6 + 5 + 5 + 0 + 633 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21602520 + ... + 21603059.

It is an arithmetic number, because the mean of its divisors is an integer number (972125550).

Almost surely, 2^11665506330 is an apocalyptic number.

11665506330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11665506330 is an abundant number, since it is smaller than the sum of its proper divisors (19442511270).

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

11665506330 is a wasteful number, since it uses less digits than its factorization.

11665506330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43205595 (or 43205589 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The spelling of 11665506330 in words is "eleven billion, six hundred sixty-five million, five hundred six thousand, three hundred thirty".