140164640351 has 4 divisors (see below), whose sum is σ = 143952873912. Its totient is φ = 136376406792.

The previous prime is 140164640333. The next prime is 140164640359. The reversal of 140164640351 is 153046461041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 153046461041 = 177943 ⋅860087.

It is a cyclic number.

It is not a de Polignac number, because 140164640351 - 2²² = 140160446047 is a prime.

It is a super-2 number, since 2×140164640351² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140164640359) 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, 1894116725 + ... + 1894116798.

It is an arithmetic number, because the mean of its divisors is an integer number (35988218478).

Almost surely, 2^140164640351 is an apocalyptic number.

140164640351 is a deficient number, since it is larger than the sum of its proper divisors (3788233561).

140164640351 is an equidigital number, since it uses as much as digits as its factorization.

140164640351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3788233560.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 140164640351 in words is "one hundred forty billion, one hundred sixty-four million, six hundred forty thousand, three hundred fifty-one".