20484928168480 has 24 divisors (see below), whose sum is σ = 48395642798412. Its totient is φ = 8193971267328.

The previous prime is 20484928168459. The next prime is 20484928168493. The reversal of 20484928168480 is 8486182948402.

It can be written as a sum of positive squares in 2 ways, for example, as 20184856475536 + 300071692944 = 4492756^2 + 547788^2 .

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, 64015400367 + ... + 64015400686.

Almost surely, 2^{20484928168480} is an apocalyptic number.

20484928168480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20484928168480 is an abundant number, since it is smaller than the sum of its proper divisors (27910714629932).

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

20484928168480 is a wasteful number, since it uses less digits than its factorization.

20484928168480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128030801068 (or 128030801060 counting only the distinct ones).

The product of its (nonzero) digits is 56623104, while the sum is 64.

The spelling of 20484928168480 in words is "twenty trillion, four hundred eighty-four billion, nine hundred twenty-eight million, one hundred sixty-eight thousand, four hundred eighty".