245640110602 has 4 divisors (see below), whose sum is σ = 368460165906. Its totient is φ = 122820055300.

The previous prime is 245640110579. The next prime is 245640110669. The reversal of 245640110602 is 206011046542.

It is a happy number.

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., 244875532801 + 764577801 = 494849^2 + 27651^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61410027649 + ... + 61410027652.

Almost surely, 2^245640110602 is an apocalyptic number.

245640110602 is a deficient number, since it is larger than the sum of its proper divisors (122820055304).

245640110602 is a wasteful number, since it uses less digits than its factorization.

245640110602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122820055303.

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 245640110602 in words is "two hundred forty-five billion, six hundred forty million, one hundred ten thousand, six hundred two".