140343868455 has 32 divisors (see below), whose sum is σ = 260835829248. Its totient is φ = 63105436800.

The previous prime is 140343868451. The next prime is 140343868459. The reversal of 140343868455 is 554868343041.

It is an interprime number because it is at equal distance from previous prime (140343868451) and next prime (140343868459).

It is not a de Polignac number, because 140343868455 - 2² = 140343868451 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140343868398 and 140343868407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140343868451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10949401 + ... + 10962210.

It is an arithmetic number, because the mean of its divisors is an integer number (8151119664).

Almost surely, 2^140343868455 is an apocalyptic number.

140343868455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

140343868455 is a deficient number, since it is larger than the sum of its proper divisors (120491960793).

140343868455 is a wasteful number, since it uses less digits than its factorization.

140343868455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21911687.

The product of its (nonzero) digits is 5529600, while the sum is 51.

The spelling of 140343868455 in words is "one hundred forty billion, three hundred forty-three million, eight hundred sixty-eight thousand, four hundred fifty-five".