11601258040 has 32 divisors (see below), whose sum is σ = 26342316000. Its totient is φ = 4597928064.

The previous prime is 11601258017. The next prime is 11601258043. The reversal of 11601258040 is 4085210611.

It is a super-2 number, since 2×11601258040² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11601258043) 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, 1326060 + ... + 1334779.

It is an arithmetic number, because the mean of its divisors is an integer number (823197375).

Almost surely, 2^11601258040 is an apocalyptic number.

11601258040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11601258040 is an abundant number, since it is smaller than the sum of its proper divisors (14741057960).

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

11601258040 is a wasteful number, since it uses less digits than its factorization.

11601258040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2660959 (or 2660955 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

Adding to 11601258040 its reverse (4085210611), we get a palindrome (15686468651).

The spelling of 11601258040 in words is "eleven billion, six hundred one million, two hundred fifty-eight thousand, forty".