245691345580 has 24 divisors (see below), whose sum is σ = 521060263920. Its totient is φ = 97303502400.

The previous prime is 245691345551. The next prime is 245691345611. The reversal of 245691345580 is 85543196542.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60812670 + ... + 60816709.

It is an arithmetic number, because the mean of its divisors is an integer number (21710844330).

Almost surely, 2^245691345580 is an apocalyptic number.

245691345580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245691345580 is an abundant number, since it is smaller than the sum of its proper divisors (275368918340).

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

245691345580 is a wasteful number, since it uses less digits than its factorization.

245691345580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121629489 (or 121629487 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 52.

The spelling of 245691345580 in words is "two hundred forty-five billion, six hundred ninety-one million, three hundred forty-five thousand, five hundred eighty".