20199285760 has 176 divisors, whose sum is σ = 51572609280. Its totient is φ = 7564820480.

The previous prime is 20199285749. The next prime is 20199285767. The reversal of 20199285760 is 6758299102.

It is a super-2 number, since 2×20199285760² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20199285767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20802075 + ... + 20803045.

Almost surely, 2^20199285760 is an apocalyptic number.

20199285760 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 20199285760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25786304640).

20199285760 is an abundant number, since it is smaller than the sum of its proper divisors (31373323520).

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

20199285760 is a wasteful number, since it uses less digits than its factorization.

20199285760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252 (or 1234 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 49.

The spelling of 20199285760 in words is "twenty billion, one hundred ninety-nine million, two hundred eighty-five thousand, seven hundred sixty".