20280866080 has 48 divisors (see below), whose sum is σ = 48040110720. Its totient is φ = 8090917632.

The previous prime is 20280866077. The next prime is 20280866113. The reversal of 20280866080 is 8066808202.

It is a super-2 number, since 2×20280866080² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106584 + ... + 227863.

It is an arithmetic number, because the mean of its divisors is an integer number (1000835640).

Almost surely, 2^20280866080 is an apocalyptic number.

20280866080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20280866080 is an abundant number, since it is smaller than the sum of its proper divisors (27759244640).

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

20280866080 is a wasteful number, since it uses less digits than its factorization.

20280866080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334841 (or 334833 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The spelling of 20280866080 in words is "twenty billion, two hundred eighty million, eight hundred sixty-six thousand, eighty".