140323451555 has 32 divisors (see below), whose sum is σ = 195294758400. Its totient is φ = 94803869952.

The previous prime is 140323451549. The next prime is 140323451621. The reversal of 140323451555 is 555154323041.

It is a cyclic number.

It is not a de Polignac number, because 140323451555 - 2⁴ = 140323451539 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 801956 + ... + 961134.

It is an arithmetic number, because the mean of its divisors is an integer number (6102961200).

Almost surely, 2^140323451555 is an apocalyptic number.

140323451555 is a deficient number, since it is larger than the sum of its proper divisors (54971306845).

140323451555 is a wasteful number, since it uses less digits than its factorization.

140323451555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159563.

The product of its (nonzero) digits is 180000, while the sum is 38.

Adding to 140323451555 its reverse (555154323041), we get a palindrome (695477774596).

The spelling of 140323451555 in words is "one hundred forty billion, three hundred twenty-three million, four hundred fifty-one thousand, five hundred fifty-five".