245316545661 has 8 divisors (see below), whose sum is σ = 356824066464. Its totient is φ = 148676694320.

The previous prime is 245316545651. The next prime is 245316545723. The reversal of 245316545661 is 166545613542.

It is a happy number.

245316545661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 245316545661 - 2¹⁴ = 245316529277 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 245316545661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245316545651) by changing a digit.

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, 3716917326 + ... + 3716917391.

It is an arithmetic number, because the mean of its divisors is an integer number (44603008308).

Almost surely, 2^245316545661 is an apocalyptic number.

It is an amenable number.

245316545661 is a deficient number, since it is larger than the sum of its proper divisors (111507520803).

245316545661 is a wasteful number, since it uses less digits than its factorization.

245316545661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7433834731.

The product of its digits is 2592000, while the sum is 48.

The spelling of 245316545661 in words is "two hundred forty-five billion, three hundred sixteen million, five hundred forty-five thousand, six hundred sixty-one".