231142471560 has 2560 divisors, whose sum is σ = 1142791372800. Its totient is φ = 40646707200.

The previous prime is 231142471543. The next prime is 231142471583. The reversal of 231142471560 is 65174241132.

231142471560 is a `hidden beast` number, since 2 + 3 + 1 + 1 + 4 + 24 + 71 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 639 ways as a sum of consecutive naturals, for example, 7456208745 + ... + 7456208775.

It is an arithmetic number, because the mean of its divisors is an integer number (446402880).

Almost surely, 2^231142471560 is an apocalyptic number.

231142471560 is a gapful number since it is divisible by the number (20) 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 231142471560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (571395686400).

231142471560 is an abundant number, since it is smaller than the sum of its proper divisors (911648901240).

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

231142471560 is a wasteful number, since it uses less digits than its factorization.

231142471560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 231142471560 in words is "two hundred thirty-one billion, one hundred forty-two million, four hundred seventy-one thousand, five hundred sixty".