20144676404740 has 12 divisors (see below), whose sum is σ = 42303820449996. Its totient is φ = 8057870561888.

The previous prime is 20144676404729. The next prime is 20144676404767. The reversal of 20144676404740 is 4740467644102.

It can be written as a sum of positive squares in 2 ways, for example, as 13391164447236 + 6753511957504 = 3659394^2 + 2598752^2 .

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, 503616910099 + ... + 503616910138.

It is an arithmetic number, because the mean of its divisors is an integer number (3525318370833).

Almost surely, 2^{20144676404740} is an apocalyptic number.

20144676404740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20144676404740 is an abundant number, since it is smaller than the sum of its proper divisors (22159144045256).

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

20144676404740 is a wasteful number, since it uses less digits than its factorization.

20144676404740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007233820246 (or 1007233820244 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 49.

The spelling of 20144676404740 in words is "twenty trillion, one hundred forty-four billion, six hundred seventy-six million, four hundred four thousand, seven hundred forty".