140440866545 has 64 divisors (see below), whose sum is σ = 205922304000. Its totient is φ = 89812592640.

The previous prime is 140440866487. The next prime is 140440866571. The reversal of 140440866545 is 545668044041.

It is not a de Polignac number, because 140440866545 - 2⁶ = 140440866481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140440866545.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12314756 + ... + 12326154.

It is an arithmetic number, because the mean of its divisors is an integer number (3217536000).

Almost surely, 2^140440866545 is an apocalyptic number.

It is an amenable number.

140440866545 is a deficient number, since it is larger than the sum of its proper divisors (65481437455).

140440866545 is a wasteful number, since it uses less digits than its factorization.

140440866545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11718.

The product of its (nonzero) digits is 1843200, while the sum is 47.

The spelling of 140440866545 in words is "one hundred forty billion, four hundred forty million, eight hundred sixty-six thousand, five hundred forty-five".