11421613660 has 24 divisors (see below), whose sum is σ = 24006061296. Its totient is φ = 4564707840.

The previous prime is 11421613639. The next prime is 11421613667. The reversal of 11421613660 is 6631612411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11421613667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222261 + ... + 268780.

It is an arithmetic number, because the mean of its divisors is an integer number (1000252554).

Almost surely, 2^11421613660 is an apocalyptic number.

11421613660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11421613660 is an abundant number, since it is smaller than the sum of its proper divisors (12584447636).

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

11421613660 is a wasteful number, since it uses less digits than its factorization.

11421613660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492213 (or 492211 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 11421613660 in words is "eleven billion, four hundred twenty-one million, six hundred thirteen thousand, six hundred sixty".