20670222760 has 128 divisors (see below), whose sum is σ = 51664314240. Its totient is φ = 7380172800.

The previous prime is 20670222743. The next prime is 20670222761. The reversal of 20670222760 is 6722207602.

It is not an unprimeable number, because it can be changed into a prime (20670222761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5589232 + ... + 5592928.

It is an arithmetic number, because the mean of its divisors is an integer number (403627455).

Almost surely, 2^20670222760 is an apocalyptic number.

20670222760 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 20670222760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25832157120).

20670222760 is an abundant number, since it is smaller than the sum of its proper divisors (30994091480).

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

20670222760 is a wasteful number, since it uses less digits than its factorization.

20670222760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3947 (or 3943 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 34.

The spelling of 20670222760 in words is "twenty billion, six hundred seventy million, two hundred twenty-two thousand, seven hundred sixty".