11640980500 has 96 divisors (see below), whose sum is σ = 26311154688. Its totient is φ = 4494672000.

The previous prime is 11640980497. The next prime is 11640980521. The reversal of 11640980500 is 508904611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8477814 + ... + 8479186.

It is an arithmetic number, because the mean of its divisors is an integer number (274074528).

Almost surely, 2^11640980500 is an apocalyptic number.

11640980500 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 11640980500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13155577344).

11640980500 is an abundant number, since it is smaller than the sum of its proper divisors (14670174188).

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

11640980500 is a wasteful number, since it uses less digits than its factorization.

11640980500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1970 (or 1958 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The spelling of 11640980500 in words is "eleven billion, six hundred forty million, nine hundred eighty thousand, five hundred".