2051393066140 has 48 divisors (see below), whose sum is σ = 4707785706624. Its totient is φ = 744654657600.

The previous prime is 2051393066111. The next prime is 2051393066159. The reversal of 2051393066140 is 416603931502.

It is a super-3 number, since 3×2051393066140³ (a number of 38 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2051393066093 and 2051393066102.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 8039454 + ... + 8290693.

It is an arithmetic number, because the mean of its divisors is an integer number (98078868888).

Almost surely, 2^{2051393066140} is an apocalyptic number.

2051393066140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2051393066140 is an abundant number, since it is smaller than the sum of its proper divisors (2656392640484).

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

2051393066140 is a wasteful number, since it uses less digits than its factorization.

2051393066140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16330738 (or 16330736 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 40.

Adding to 2051393066140 its reverse (416603931502), we get a palindrome (2467996997642).

The spelling of 2051393066140 in words is "two trillion, fifty-one billion, three hundred ninety-three million, sixty-six thousand, one hundred forty".