20544671460 has 48 divisors (see below), whose sum is σ = 57891508416. Its totient is φ = 5443681152.

The previous prime is 20544671437. The next prime is 20544671471. The reversal of 20544671460 is 6417644502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1081062 + ... + 1099901.

It is an arithmetic number, because the mean of its divisors is an integer number (1206073092).

Almost surely, 2^20544671460 is an apocalyptic number.

20544671460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20544671460 is an abundant number, since it is smaller than the sum of its proper divisors (37346836956).

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

20544671460 is a wasteful number, since it uses less digits than its factorization.

20544671460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2181132 (or 2181130 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 39.

The spelling of 20544671460 in words is "twenty billion, five hundred forty-four million, six hundred seventy-one thousand, four hundred sixty".