20001276080 has 20 divisors (see below), whose sum is σ = 46502967072. Its totient is φ = 8000510400.

The previous prime is 20001276049. The next prime is 20001276143. The reversal of 20001276080 is 8067210002.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125007896 + ... + 125008055.

Almost surely, 2^20001276080 is an apocalyptic number.

20001276080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20001276080 is an abundant number, since it is smaller than the sum of its proper divisors (26501690992).

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

20001276080 is a wasteful number, since it uses less digits than its factorization.

20001276080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250015964 (or 250015958 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

Adding to 20001276080 its reverse (8067210002), we get a palindrome (28068486082).

The spelling of 20001276080 in words is "twenty billion, one million, two hundred seventy-six thousand, eighty".