245513105620 has 48 divisors (see below), whose sum is σ = 519762216960. Its totient is φ = 97408531584.

The previous prime is 245513105609. The next prime is 245513105633. The reversal of 245513105620 is 26501315542.

It is a congruent number.

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, 13755342 + ... + 13773178.

It is an arithmetic number, because the mean of its divisors is an integer number (10828379520).

Almost surely, 2^245513105620 is an apocalyptic number.

245513105620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245513105620 is an abundant number, since it is smaller than the sum of its proper divisors (274249111340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245513105620 is a wasteful number, since it uses less digits than its factorization.

245513105620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23392 (or 23390 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 245513105620 in words is "two hundred forty-five billion, five hundred thirteen million, one hundred five thousand, six hundred twenty".