20671223060 has 12 divisors (see below), whose sum is σ = 43409568468. Its totient is φ = 8268489216.

The previous prime is 20671223059. The next prime is 20671223101. The reversal of 20671223060 is 6032217602.

It can be written as a sum of positive squares in 2 ways, for example, as 6287538436 + 14383684624 = 79294^2 + 119932^2 .

It is a congruent number.

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, 516780557 + ... + 516780596.

It is an arithmetic number, because the mean of its divisors is an integer number (3617464039).

Almost surely, 2^20671223060 is an apocalyptic number.

20671223060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20671223060 is an abundant number, since it is smaller than the sum of its proper divisors (22738345408).

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

20671223060 is a wasteful number, since it uses less digits than its factorization.

20671223060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033561162 (or 1033561160 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The spelling of 20671223060 in words is "twenty billion, six hundred seventy-one million, two hundred twenty-three thousand, sixty".