245155523205 has 32 divisors (see below), whose sum is σ = 401884414848. Its totient is φ = 127538841600.

The previous prime is 245155523201. The next prime is 245155523243. The reversal of 245155523205 is 502325551542.

It is not a de Polignac number, because 245155523205 - 2² = 245155523201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245155523201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3955062 + ... + 4016568.

It is an arithmetic number, because the mean of its divisors is an integer number (12558887964).

Almost surely, 2^245155523205 is an apocalyptic number.

It is an amenable number.

245155523205 is a deficient number, since it is larger than the sum of its proper divisors (156728891643).

245155523205 is a wasteful number, since it uses less digits than its factorization.

245155523205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68037.

The product of its (nonzero) digits is 300000, while the sum is 39.

The spelling of 245155523205 in words is "two hundred forty-five billion, one hundred fifty-five million, five hundred twenty-three thousand, two hundred five".