20247552647220 has 48 divisors (see below), whose sum is σ = 60028038439488. Its totient is φ = 5081738703360.

The previous prime is 20247552647207. The next prime is 20247552647303. The reversal of 20247552647220 is 2274625574202.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20247552647220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9925269886 + ... + 9925271925.

It is an arithmetic number, because the mean of its divisors is an integer number (1250584134156).

Almost surely, 2^{20247552647220} is an apocalyptic number.

20247552647220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20247552647220 is an abundant number, since it is smaller than the sum of its proper divisors (39780485792268).

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

20247552647220 is a wasteful number, since it uses less digits than its factorization.

20247552647220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19850541840 (or 19850541838 counting only the distinct ones).

The product of its (nonzero) digits is 3763200, while the sum is 48.

The spelling of 20247552647220 in words is "twenty trillion, two hundred forty-seven billion, five hundred fifty-two million, six hundred forty-seven thousand, two hundred twenty".