2065626043640 has 32 divisors (see below), whose sum is σ = 4671991906560. Its totient is φ = 821924496000.

The previous prime is 2065626043589. The next prime is 2065626043643. The reversal of 2065626043640 is 463406265602.

It is a junction number, because it is equal to n+sod(n) for n = 2065626043591 and 2065626043600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2065626043643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135177311 + ... + 135192590.

It is an arithmetic number, because the mean of its divisors is an integer number (145999747080).

Almost surely, 2^{2065626043640} is an apocalyptic number.

2065626043640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2065626043640 is an abundant number, since it is smaller than the sum of its proper divisors (2606365862920).

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

2065626043640 is a wasteful number, since it uses less digits than its factorization.

2065626043640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270370103 (or 270370099 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 44.

The spelling of 2065626043640 in words is "two trillion, sixty-five billion, six hundred twenty-six million, forty-three thousand, six hundred forty".