20547073738620 has 1440 divisors, whose sum is σ = 79047325659456. Its totient is φ = 4425228288000.

The previous prime is 20547073738619. The next prime is 20547073738637. The reversal of 20547073738620 is 2683737074502.

20547073738620 is a `hidden beast` number, since 2 + 0 + 5 + 4 + 7 + 0 + 7 + 3 + 7 + 3 + 8 + 620 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 10808559670 + ... + 10808561570.

Almost surely, 2^{20547073738620} is an apocalyptic number.

20547073738620 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 20547073738620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39523662829728).

20547073738620 is an abundant number, since it is smaller than the sum of its proper divisors (58500251920836).

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

20547073738620 is a wasteful number, since it uses less digits than its factorization.

20547073738620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2093 (or 2069 counting only the distinct ones).

The product of its (nonzero) digits is 11854080, while the sum is 54.

The spelling of 20547073738620 in words is "twenty trillion, five hundred forty-seven billion, seventy-three million, seven hundred thirty-eight thousand, six hundred twenty".