245445566 has 8 divisors (see below), whose sum is σ = 369790920. Its totient is φ = 122181928.

The previous prime is 245445559. The next prime is 245445611. The reversal of 245445566 is 665544542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269861 + ... + 270768.

It is an arithmetic number, because the mean of its divisors is an integer number (46223865).

Almost surely, 2^245445566 is an apocalyptic number.

245445566 is a deficient number, since it is larger than the sum of its proper divisors (124345354).

245445566 is a wasteful number, since it uses less digits than its factorization.

245445566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540858.

The product of its digits is 576000, while the sum is 41.

The square root of 245445566 is about 15666.7024609520. The cubic root of 245445566 is about 626.1115715353. Note that the first 3 decimals are identical.

The spelling of 245445566 in words is "two hundred forty-five million, four hundred forty-five thousand, five hundred sixty-six".