140660688965 has 16 divisors (see below), whose sum is σ = 174624649200. Its totient is φ = 108641175552.

The previous prime is 140660688947. The next prime is 140660688979. The reversal of 140660688965 is 569886066041.

It can be written as a sum of positive squares in 8 ways, for example, as 2132315329 + 138528373636 = 46177^2 + 372194^2 .

It is a cyclic number.

It is not a de Polignac number, because 140660688965 - 2²⁰ = 140659640389 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3781799 + ... + 3818811.

It is an arithmetic number, because the mean of its divisors is an integer number (10914040575).

Almost surely, 2^140660688965 is an apocalyptic number.

It is an amenable number.

140660688965 is a deficient number, since it is larger than the sum of its proper divisors (33963960235).

140660688965 is a wasteful number, since it uses less digits than its factorization.

140660688965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63256.

The product of its (nonzero) digits is 14929920, while the sum is 59.

The spelling of 140660688965 in words is "one hundred forty billion, six hundred sixty million, six hundred eighty-eight thousand, nine hundred sixty-five".