11641603560 has 64 divisors (see below), whose sum is σ = 35497370880. Its totient is φ = 3053533440.

The previous prime is 11641603517. The next prime is 11641603579. The reversal of 11641603560 is 6530614611.

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, 787872 + ... + 802511.

It is an arithmetic number, because the mean of its divisors is an integer number (554646420).

Almost surely, 2^11641603560 is an apocalyptic number.

11641603560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11641603560 is an abundant number, since it is smaller than the sum of its proper divisors (23855767320).

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

11641603560 is a wasteful number, since it uses less digits than its factorization.

11641603560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590458 (or 1590454 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 11641603560 in words is "eleven billion, six hundred forty-one million, six hundred three thousand, five hundred sixty".