20276921080 has 64 divisors (see below), whose sum is σ = 49152448800. Its totient is φ = 7483829760.

The previous prime is 20276921039. The next prime is 20276921083. The reversal of 20276921080 is 8012967202.

It is a super-2 number, since 2×20276921080² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20276921083) 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, 1585351 + ... + 1598089.

Almost surely, 2^20276921080 is an apocalyptic number.

20276921080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20276921080 is an abundant number, since it is smaller than the sum of its proper divisors (28875527720).

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

20276921080 is a wasteful number, since it uses less digits than its factorization.

20276921080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15824 (or 15820 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 20276921080 in words is "twenty billion, two hundred seventy-six million, nine hundred twenty-one thousand, eighty".