140023212555 has 16 divisors (see below), whose sum is σ = 224042061600. Its totient is φ = 74677406208.

The previous prime is 140023212521. The next prime is 140023212557. The reversal of 140023212555 is 555212320041.

It is a de Polignac number, because none of the positive numbers 2^k-140023212555 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140023212557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 954771 + ... + 1091619.

It is an arithmetic number, because the mean of its divisors is an integer number (14002628850).

Almost surely, 2^140023212555 is an apocalyptic number.

140023212555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

140023212555 is a deficient number, since it is larger than the sum of its proper divisors (84018849045).

140023212555 is a wasteful number, since it uses less digits than its factorization.

140023212555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205070.

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 140023212555 its reverse (555212320041), we get a palindrome (695235532596).

The spelling of 140023212555 in words is "one hundred forty billion, twenty-three million, two hundred twelve thousand, five hundred fifty-five".