20069451360 has 576 divisors, whose sum is σ = 80668224000. Its totient is φ = 4541580288.

The previous prime is 20069451349. The next prime is 20069451373. The reversal of 20069451360 is 6315496002.

It is a happy number.

20069451360 is a `hidden beast` number, since 20 + 0 + 69 + 4 + 513 + 60 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 88411567 + ... + 88411793.

It is an arithmetic number, because the mean of its divisors is an integer number (140049000).

Almost surely, 2^20069451360 is an apocalyptic number.

20069451360 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 20069451360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40334112000).

20069451360 is an abundant number, since it is smaller than the sum of its proper divisors (60598772640).

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

20069451360 is a wasteful number, since it uses less digits than its factorization.

20069451360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448 (or 423 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 20069451360 in words is "twenty billion, sixty-nine million, four hundred fifty-one thousand, three hundred sixty".