245490183680 has 320 divisors, whose sum is σ = 718888452480. Its totient is φ = 78479622144.

The previous prime is 245490183647. The next prime is 245490183683. The reversal of 245490183680 is 86381094542.

It is a tau number, because it is divible by the number of its divisors (320).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245490183683) 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, 33202064 + ... + 33209456.

It is an arithmetic number, because the mean of its divisors is an integer number (2246526414).

Almost surely, 2^245490183680 is an apocalyptic number.

245490183680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245490183680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359444226240).

245490183680 is an abundant number, since it is smaller than the sum of its proper divisors (473398268800).

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

245490183680 is a wasteful number, since it uses less digits than its factorization.

245490183680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7549 (or 7533 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 50.

The spelling of 245490183680 in words is "two hundred forty-five billion, four hundred ninety million, one hundred eighty-three thousand, six hundred eighty".