11371577688 has 160 divisors (see below), whose sum is σ = 32220722160. Its totient is φ = 3762339840.

The previous prime is 11371577677. The next prime is 11371577731. The reversal of 11371577688 is 88677517311.

11371577688 is a `hidden beast` number, since 1 + 1 + 3 + 7 + 1 + 577 + 68 + 8 = 666.

It is a super-2 number, since 2×11371577688² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 40468108 + ... + 40468388.

Almost surely, 2^11371577688 is an apocalyptic number.

11371577688 is a gapful number since it is divisible by the number (18) 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 11371577688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16110361080).

11371577688 is an abundant number, since it is smaller than the sum of its proper divisors (20849144472).

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

11371577688 is an frugal number, since it uses more digits than its factorization.

11371577688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571 (or 543 counting only the distinct ones).

The product of its digits is 1975680, while the sum is 54.

The spelling of 11371577688 in words is "eleven billion, three hundred seventy-one million, five hundred seventy-seven thousand, six hundred eighty-eight".