245650643506 has 16 divisors (see below), whose sum is σ = 375444284544. Its totient is φ = 120502745584.

The previous prime is 245650643473. The next prime is 245650643507. The reversal of 245650643506 is 605346056542.

It is not an unprimeable number, because it can be changed into a prime (245650643507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4106745 + ... + 4166131.

It is an arithmetic number, because the mean of its divisors is an integer number (23465267784).

Almost surely, 2^245650643506 is an apocalyptic number.

245650643506 is a deficient number, since it is larger than the sum of its proper divisors (129793641038).

245650643506 is a wasteful number, since it uses less digits than its factorization.

245650643506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98465.

The product of its (nonzero) digits is 2592000, while the sum is 46.

The spelling of 245650643506 in words is "two hundred forty-five billion, six hundred fifty million, six hundred forty-three thousand, five hundred six".