240166331435427 has 4 divisors (see below), whose sum is σ = 320221775247240. Its totient is φ = 160110887623616.

The previous prime is 240166331435279. The next prime is 240166331435447. The reversal of 240166331435427 is 724534133661042.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 240166331435427 - 2³² = 240162036468131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 240166331435427.

It is not an unprimeable number, because it can be changed into a prime (240166331435447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40027721905902 + ... + 40027721905907.

It is an arithmetic number, because the mean of its divisors is an integer number (80055443811810).

Almost surely, 2^{240166331435427} is an apocalyptic number.

240166331435427 is a deficient number, since it is larger than the sum of its proper divisors (80055443811813).

240166331435427 is an equidigital number, since it uses as much as digits as its factorization.

240166331435427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80055443811812.

The product of its (nonzero) digits is 8709120, while the sum is 51.

The spelling of 240166331435427 in words is "two hundred forty trillion, one hundred sixty-six billion, three hundred thirty-one million, four hundred thirty-five thousand, four hundred twenty-seven".