231566134337048 has 128 divisors (see below), whose sum is σ = 526361916124800. Its totient is φ = 93234253824000.

The previous prime is 231566134337011. The next prime is 231566134337051. The reversal of 231566134337048 is 840733431665132.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a junction number, because it is equal to n+sod(n) for n = 231566134336984 and 231566134337002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3930082628 + ... + 3930141548.

It is an arithmetic number, because the mean of its divisors is an integer number (4112202469725).

Almost surely, 2^{231566134337048} is an apocalyptic number.

231566134337048 is a gapful number since it is divisible by the number (28) 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 231566134337048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263180958062400).

231566134337048 is an abundant number, since it is smaller than the sum of its proper divisors (294795781787752).

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

231566134337048 is a wasteful number, since it uses less digits than its factorization.

231566134337048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66421 (or 66417 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 56.

The spelling of 231566134337048 in words is "two hundred thirty-one trillion, five hundred sixty-six billion, one hundred thirty-four million, three hundred thirty-seven thousand, forty-eight".