2065418081280 has 132 divisors (see below), whose sum is σ = 7156620024372. Its totient is φ = 550778142720.

The previous prime is 2065418081269. The next prime is 2065418081329. The reversal of 2065418081280 is 821808145602.

2065418081280 is a `hidden beast` number, since 2 + 0 + 6 + 541 + 8 + 0 + 81 + 28 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 608549769216 + 1456868312064 = 780096^2 + 1207008^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22365141 + ... + 22457300.

Almost surely, 2^{2065418081280} is an apocalyptic number.

2065418081280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2065418081280 is an abundant number, since it is smaller than the sum of its proper divisors (5091201943092).

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

2065418081280 is a wasteful number, since it uses less digits than its factorization.

2065418081280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44822472 (or 44822451 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 45.

The spelling of 2065418081280 in words is "two trillion, sixty-five billion, four hundred eighteen million, eighty-one thousand, two hundred eighty".