231545430415546 has 24 divisors (see below), whose sum is σ = 376785239027004. Its totient is φ = 106669585376640.

The previous prime is 231545430415543. The next prime is 231545430415583. The reversal of 231545430415546 is 645514034545132.

231545430415546 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 29615788477521 + 201929641938025 = 5442039^2 + 14210195^2 .

It is a super-2 number, since 2×231545430415546² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231545430415493 and 231545430415502.

It is not an unprimeable number, because it can be changed into a prime (231545430415543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 632946211 + ... + 633311926.

Almost surely, 2^{231545430415546} is an apocalyptic number.

231545430415546 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

231545430415546 is a deficient number, since it is larger than the sum of its proper divisors (145239808611458).

231545430415546 is a wasteful number, since it uses less digits than its factorization.

231545430415546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266258706 (or 1266258693 counting only the distinct ones).

The product of its (nonzero) digits is 17280000, while the sum is 52.

The spelling of 231545430415546 in words is "two hundred thirty-one trillion, five hundred forty-five billion, four hundred thirty million, four hundred fifteen thousand, five hundred forty-six".