140566143438 has 96 divisors (see below), whose sum is σ = 349733030400. Its totient is φ = 39970179648.

The previous prime is 140566143437. The next prime is 140566143449. The reversal of 140566143438 is 834341665041.

140566143438 is a `hidden beast` number, since 1 + 4 + 0 + 566 + 1 + 43 + 43 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 140566143393 and 140566143402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140566143437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24303895 + ... + 24309677.

It is an arithmetic number, because the mean of its divisors is an integer number (3643052400).

Almost surely, 2^140566143438 is an apocalyptic number.

140566143438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

140566143438 is an abundant number, since it is smaller than the sum of its proper divisors (209166886962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140566143438 is a wasteful number, since it uses less digits than its factorization.

140566143438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6686 (or 6683 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 140566143438 in words is "one hundred forty billion, five hundred sixty-six million, one hundred forty-three thousand, four hundred thirty-eight".