245400557205 has 8 divisors (see below), whose sum is σ = 392640891552. Its totient is φ = 130880297168.

The previous prime is 245400557201. The next prime is 245400557239. The reversal of 245400557205 is 502755004542.

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

It is a cyclic number.

It is not a de Polignac number, because 245400557205 - 2² = 245400557201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245400557201) 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 in 7 ways as a sum of consecutive naturals, for example, 8180018559 + ... + 8180018588.

It is an arithmetic number, because the mean of its divisors is an integer number (49080111444).

Almost surely, 2^245400557205 is an apocalyptic number.

It is an amenable number.

245400557205 is a deficient number, since it is larger than the sum of its proper divisors (147240334347).

245400557205 is a wasteful number, since it uses less digits than its factorization.

245400557205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16360037155.

The product of its (nonzero) digits is 280000, while the sum is 39.

The spelling of 245400557205 in words is "two hundred forty-five billion, four hundred million, five hundred fifty-seven thousand, two hundred five".