20477345060 has 24 divisors (see below), whose sum is σ = 43007379576. Its totient is φ = 8189994240.

The previous prime is 20477345011. The next prime is 20477345069. The reversal of 20477345060 is 6054377402.

It can be written as a sum of positive squares in 4 ways, for example, as 7500945664 + 12976399396 = 86608^2 + 113914^2 .

It is not an unprimeable number, because it can be changed into a prime (20477345069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134390 + ... + 242930.

It is an arithmetic number, because the mean of its divisors is an integer number (1791974149).

Almost surely, 2^20477345060 is an apocalyptic number.

20477345060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20477345060 is an abundant number, since it is smaller than the sum of its proper divisors (22530034516).

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

20477345060 is a wasteful number, since it uses less digits than its factorization.

20477345060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117983 (or 117981 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 38.

The spelling of 20477345060 in words is "twenty billion, four hundred seventy-seven million, three hundred forty-five thousand, sixty".