20245695048720 has 320 divisors, whose sum is σ = 73907769600000. Its totient is φ = 5076418904064.

The previous prime is 20245695048707. The next prime is 20245695048749. The reversal of 20245695048720 is 2784059654202.

20245695048720 is a `hidden beast` number, since 2 + 0 + 2 + 4 + 5 + 69 + 504 + 8 + 72 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 38256481 + ... + 38782079.

It is an arithmetic number, because the mean of its divisors is an integer number (230961780000).

Almost surely, 2^{20245695048720} is an apocalyptic number.

20245695048720 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 20245695048720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36953884800000).

20245695048720 is an abundant number, since it is smaller than the sum of its proper divisors (53662074551280).

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

20245695048720 is a wasteful number, since it uses less digits than its factorization.

20245695048720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526687 (or 526675 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 54.

The spelling of 20245695048720 in words is "twenty trillion, two hundred forty-five billion, six hundred ninety-five million, forty-eight thousand, seven hundred twenty".