20069544960 has 616 divisors, whose sum is σ = 76249603680. Its totient is φ = 5052284928.

The previous prime is 20069544947. The next prime is 20069545003. The reversal of 20069544960 is 6944596002.

It is a super-2 number, since 2×20069544960² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 70916979 + ... + 70917261.

Almost surely, 2^20069544960 is an apocalyptic number.

20069544960 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 20069544960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38124801840).

20069544960 is an abundant number, since it is smaller than the sum of its proper divisors (56180058720).

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

20069544960 is an equidigital number, since it uses as much as digits as its factorization.

20069544960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 20069544960 in words is "twenty billion, sixty-nine million, five hundred forty-four thousand, nine hundred sixty".