245374666522 has 4 divisors (see below), whose sum is σ = 368061999786. Its totient is φ = 122687333260.

The previous prime is 245374666507. The next prime is 245374666529. The reversal of 245374666522 is 225666473542.

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

It can be written as a sum of positive squares in only one way, i.e., 239562281401 + 5812385121 = 489451^2 + 76239^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 245374666522.

It is not an unprimeable number, because it can be changed into a prime (245374666529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61343666629 + ... + 61343666632.

Almost surely, 2^245374666522 is an apocalyptic number.

245374666522 is a deficient number, since it is larger than the sum of its proper divisors (122687333264).

245374666522 is a wasteful number, since it uses less digits than its factorization.

245374666522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122687333263.

The product of its digits is 14515200, while the sum is 52.

The spelling of 245374666522 in words is "two hundred forty-five billion, three hundred seventy-four million, six hundred sixty-six thousand, five hundred twenty-two".