140265820664841 has 24 divisors (see below), whose sum is σ = 197684644772160. Its totient is φ = 88453274389344.

The previous prime is 140265820664833. The next prime is 140265820664843. The reversal of 140265820664841 is 148466028562041.

It is a happy number.

It is not a de Polignac number, because 140265820664841 - 2³ = 140265820664833 is a prime.

It is a super-2 number, since 2×140265820664841² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (140265820664843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98462781 + ... + 99877178.

It is an arithmetic number, because the mean of its divisors is an integer number (8236860198840).

Almost surely, 2^{140265820664841} is an apocalyptic number.

It is an amenable number.

140265820664841 is a deficient number, since it is larger than the sum of its proper divisors (57418824107319).

140265820664841 is a wasteful number, since it uses less digits than its factorization.

140265820664841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198340653 (or 198340634 counting only the distinct ones).

The product of its (nonzero) digits is 17694720, while the sum is 57.

The spelling of 140265820664841 in words is "one hundred forty trillion, two hundred sixty-five billion, eight hundred twenty million, six hundred sixty-four thousand, eight hundred forty-one".