20693260620 has 192 divisors, whose sum is σ = 68305305600. Its totient is φ = 5186280960.

The previous prime is 20693260607. The next prime is 20693260691. The reversal of 20693260620 is 2606239602.

20693260620 is a `hidden beast` number, since 2 + 0 + 6 + 9 + 3 + 26 + 0 + 620 = 666.

It is a super-2 number, since 2×20693260620² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 1295080 + ... + 1310960.

It is an arithmetic number, because the mean of its divisors is an integer number (355756800).

Almost surely, 2^20693260620 is an apocalyptic number.

20693260620 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 20693260620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34152652800).

20693260620 is an abundant number, since it is smaller than the sum of its proper divisors (47612044980).

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

20693260620 is a wasteful number, since it uses less digits than its factorization.

20693260620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16045 (or 16037 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The spelling of 20693260620 in words is "twenty billion, six hundred ninety-three million, two hundred sixty thousand, six hundred twenty".