140033351641 has 4 divisors (see below), whose sum is σ = 143448799284. Its totient is φ = 136617904000.

The previous prime is 140033351603. The next prime is 140033351659. The reversal of 140033351641 is 146153330041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 146153330041 = 315743 ⋅462887.

It can be written as a sum of positive squares in 2 ways, for example, as 66342820041 + 73690531600 = 257571^2 + 271460^2 .

It is a de Polignac number, because none of the positive numbers 2^k-140033351641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140033381641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1707723760 + ... + 1707723841.

It is an arithmetic number, because the mean of its divisors is an integer number (35862199821).

Almost surely, 2^140033351641 is an apocalyptic number.

It is an amenable number.

140033351641 is a deficient number, since it is larger than the sum of its proper divisors (3415447643).

140033351641 is an equidigital number, since it uses as much as digits as its factorization.

140033351641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3415447642.

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 140033351641 its reverse (146153330041), we get a palindrome (286186681682).

The spelling of 140033351641 in words is "one hundred forty billion, thirty-three million, three hundred fifty-one thousand, six hundred forty-one".