11691169480 has 32 divisors (see below), whose sum is σ = 26308592640. Its totient is φ = 4675852480.

The previous prime is 11691169463. The next prime is 11691169481. The reversal of 11691169480 is 8496119611.

It is a self number, because there is not a number n which added to its sum of digits gives 11691169480.

It is not an unprimeable number, because it can be changed into a prime (11691169481) 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, 403065 + ... + 431095.

It is an arithmetic number, because the mean of its divisors is an integer number (822143520).

Almost surely, 2^11691169480 is an apocalyptic number.

11691169480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11691169480 is an abundant number, since it is smaller than the sum of its proper divisors (14617423160).

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

11691169480 is a wasteful number, since it uses less digits than its factorization.

11691169480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38469 (or 38465 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 46.

The spelling of 11691169480 in words is "eleven billion, six hundred ninety-one million, one hundred sixty-nine thousand, four hundred eighty".