20673421286760 has 256 divisors, whose sum is σ = 75204109152000. Its totient is φ = 5009869716480.

The previous prime is 20673421286741. The next prime is 20673421286789. The reversal of 20673421286760 is 6768212437602.

20673421286760 is a `hidden beast` number, since 2 + 0 + 6 + 73 + 421 + 2 + 86 + 76 + 0 = 666.

It is a super-2 number, since 2×20673421286760² (a number of 27 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 20673421286697 and 20673421286706.

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, 31669746 + ... + 32315934.

It is an arithmetic number, because the mean of its divisors is an integer number (293766051375).

Almost surely, 2^{20673421286760} is an apocalyptic number.

20673421286760 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 20673421286760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37602054576000).

20673421286760 is an abundant number, since it is smaller than the sum of its proper divisors (54530687865240).

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

20673421286760 is a wasteful number, since it uses less digits than its factorization.

20673421286760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648913 (or 648903 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 54.

The spelling of 20673421286760 in words is "twenty trillion, six hundred seventy-three billion, four hundred twenty-one million, two hundred eighty-six thousand, seven hundred sixty".