231662403672 has 256 divisors, whose sum is σ = 748735488000. Its totient is φ = 58135283712.

The previous prime is 231662403649. The next prime is 231662403673. The reversal of 231662403672 is 276304266132.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231662403673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3603829 + ... + 3667547.

It is an arithmetic number, because the mean of its divisors is an integer number (2924748000).

Almost surely, 2^231662403672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231662403672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374367744000).

231662403672 is an abundant number, since it is smaller than the sum of its proper divisors (517073084328).

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

231662403672 is a wasteful number, since it uses less digits than its factorization.

231662403672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63838 (or 63834 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 42.

The spelling of 231662403672 in words is "two hundred thirty-one billion, six hundred sixty-two million, four hundred three thousand, six hundred seventy-two".