231600011600 has 30 divisors (see below), whose sum is σ = 556419028830. Its totient is φ = 92640004480.

The previous prime is 231600011593. The next prime is 231600011609. The reversal of 231600011600 is 6110006132.

It can be written as a sum of positive squares in 3 ways, for example, as 76304117824 + 155295893776 = 276232^2 + 394076^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231600011609) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 289499615 + ... + 289500414.

It is an arithmetic number, because the mean of its divisors is an integer number (18547300961).

Almost surely, 2^231600011600 is an apocalyptic number.

231600011600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231600011600 is an abundant number, since it is smaller than the sum of its proper divisors (324819017230).

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

231600011600 is a wasteful number, since it uses less digits than its factorization.

231600011600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579000047 (or 579000036 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 231600011600 its reverse (6110006132), we get a palindrome (237710017732).

The spelling of 231600011600 in words is "two hundred thirty-one billion, six hundred million, eleven thousand, six hundred".