245340212505 has 16 divisors (see below), whose sum is σ = 392670270720. Its totient is φ = 130806136448.

The previous prime is 245340212479. The next prime is 245340212633. The reversal of 245340212505 is 505212043542.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 245340212505 - 2⁵ = 245340212473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2575212 + ... + 2668781.

It is an arithmetic number, because the mean of its divisors is an integer number (24541891920).

Almost surely, 2^245340212505 is an apocalyptic number.

It is an amenable number.

245340212505 is a deficient number, since it is larger than the sum of its proper divisors (147330058215).

245340212505 is a wasteful number, since it uses less digits than its factorization.

245340212505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5247120.

The product of its (nonzero) digits is 48000, while the sum is 33.

The spelling of 245340212505 in words is "two hundred forty-five billion, three hundred forty million, two hundred twelve thousand, five hundred five".