140664345461 has 8 divisors (see below), whose sum is σ = 151515032064. Its totient is φ = 130208229360.

The previous prime is 140664345433. The next prime is 140664345499. The reversal of 140664345461 is 164543466041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140664345461 - 2¹⁰ = 140664344437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140664345161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98641886 + ... + 98643311.

It is an arithmetic number, because the mean of its divisors is an integer number (18939379008).

Almost surely, 2^140664345461 is an apocalyptic number.

It is an amenable number.

140664345461 is a deficient number, since it is larger than the sum of its proper divisors (10850686603).

140664345461 is a wasteful number, since it uses less digits than its factorization.

140664345461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197285251.

The product of its (nonzero) digits is 829440, while the sum is 44.

The spelling of 140664345461 in words is "one hundred forty billion, six hundred sixty-four million, three hundred forty-five thousand, four hundred sixty-one".