11611703532 has 144 divisors (see below), whose sum is σ = 32207535360. Its totient is φ = 3234295680.

The previous prime is 11611703503. The next prime is 11611703557. The reversal of 11611703532 is 23530711611.

It is a super-2 number, since 2×11611703532² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11611703532.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4963219 + ... + 4965557.

It is an arithmetic number, because the mean of its divisors is an integer number (223663440).

Almost surely, 2^11611703532 is an apocalyptic number.

11611703532 is a gapful number since it is divisible by the number (12) 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 11611703532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16103767680).

11611703532 is an abundant number, since it is smaller than the sum of its proper divisors (20595831828).

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

11611703532 is a wasteful number, since it uses less digits than its factorization.

11611703532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2644 (or 2631 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 30.

The spelling of 11611703532 in words is "eleven billion, six hundred eleven million, seven hundred three thousand, five hundred thirty-two".