231069886506144 has 240 divisors, whose sum is σ = 776938633023168. Its totient is φ = 65995564935168.

The previous prime is 231069886506143. The next prime is 231069886506157. The reversal of 231069886506144 is 441605688960132.

231069886506144 is a `hidden beast` number, since 2 + 3 + 1 + 0 + 6 + 9 + 8 + 8 + 6 + 5 + 0 + 614 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (231069886506143) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 46763512 + ... + 51468104.

Almost surely, 2^{231069886506144} is an apocalyptic number.

231069886506144 is a gapful number since it is divisible by the number (24) 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 231069886506144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (388469316511584).

231069886506144 is an abundant number, since it is smaller than the sum of its proper divisors (545868746517024).

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

231069886506144 is a wasteful number, since it uses less digits than its factorization.

231069886506144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4707329 (or 4707312 counting only the distinct ones).

The product of its (nonzero) digits is 59719680, while the sum is 63.

The spelling of 231069886506144 in words is "two hundred thirty-one trillion, sixty-nine billion, eight hundred eighty-six million, five hundred six thousand, one hundred forty-four".