140056261565 has 24 divisors (see below), whose sum is σ = 185034302880. Its totient is φ = 101694273120.

The previous prime is 140056261517. The next prime is 140056261567. The reversal of 140056261565 is 565162650041.

It is not a de Polignac number, because 140056261565 - 2¹⁴ = 140056245181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140056261567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 187502 + ... + 561488.

It is an arithmetic number, because the mean of its divisors is an integer number (7709762620).

Almost surely, 2^140056261565 is an apocalyptic number.

It is an amenable number.

140056261565 is a deficient number, since it is larger than the sum of its proper divisors (44978041315).

140056261565 is a wasteful number, since it uses less digits than its factorization.

140056261565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374633 (or 374622 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 140056261565 in words is "one hundred forty billion, fifty-six million, two hundred sixty-one thousand, five hundred sixty-five".