20151793383680 has 576 divisors, whose sum is σ = 57413631475200. Its totient is φ = 6633757605888.

The previous prime is 20151793383679. The next prime is 20151793383727. The reversal of 20151793383680 is 8638339715102.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9815777534 + ... + 9815779586.

Almost surely, 2^{20151793383680} is an apocalyptic number.

20151793383680 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 20151793383680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28706815737600).

20151793383680 is an abundant number, since it is smaller than the sum of its proper divisors (37261838091520).

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

20151793383680 is a wasteful number, since it uses less digits than its factorization.

20151793383680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2546 (or 2532 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 20151793383680 in words is "twenty trillion, one hundred fifty-one billion, seven hundred ninety-three million, three hundred eighty-three thousand, six hundred eighty".