11989965330 has 192 divisors, whose sum is σ = 37580820480. Its totient is φ = 2712019968.

The previous prime is 11989965319. The next prime is 11989965367. The reversal of 11989965330 is 3356998911.

11989965330 is a `hidden beast` number, since 1 + 19 + 8 + 9 + 96 + 533 + 0 = 666.

It is a super-2 number, since 2×11989965330² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1278639 + ... + 1287981.

It is an arithmetic number, because the mean of its divisors is an integer number (195733440).

Almost surely, 2^11989965330 is an apocalyptic number.

11989965330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11989965330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18790410240).

11989965330 is an abundant number, since it is smaller than the sum of its proper divisors (25590855150).

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

11989965330 is a wasteful number, since it uses less digits than its factorization.

11989965330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9470 (or 9457 counting only the distinct ones).

The product of its (nonzero) digits is 1574640, while the sum is 54.

The spelling of 11989965330 in words is "eleven billion, nine hundred eighty-nine million, nine hundred sixty-five thousand, three hundred thirty".