11964663600 has 120 divisors (see below), whose sum is σ = 38499535872. Its totient is φ = 3176198400.

The previous prime is 11964663593. The next prime is 11964663629. The reversal of 11964663600 is 636646911.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×11964663600² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 245245 + ... + 289955.

Almost surely, 2^11964663600 is an apocalyptic number.

11964663600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11964663600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19249767936).

11964663600 is an abundant number, since it is smaller than the sum of its proper divisors (26534872272).

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

11964663600 is a wasteful number, since it uses less digits than its factorization.

11964663600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44955 (or 44944 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 42.

The spelling of 11964663600 in words is "eleven billion, nine hundred sixty-four million, six hundred sixty-three thousand, six hundred".