245668866542 has 16 divisors (see below), whose sum is σ = 402011241264. Its totient is φ = 111665544000.

The previous prime is 245668866523. The next prime is 245668866571.

It is a happy number.

245668866542 is nontrivially palindromic in base 10.

245668866542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2060192 + ... + 2176172.

It is an arithmetic number, because the mean of its divisors is an integer number (25125702579).

Almost surely, 2^245668866542 is an apocalyptic number.

245668866542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

245668866542 is a deficient number, since it is larger than the sum of its proper divisors (156342374722).

245668866542 is a wasteful number, since it uses less digits than its factorization.

245668866542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212275.

The product of its digits is 132710400, while the sum is 62.

The spelling of 245668866542 in words is "two hundred forty-five billion, six hundred sixty-eight million, eight hundred sixty-six thousand, five hundred forty-two".