140540430466 has 4 divisors (see below), whose sum is σ = 210810645702. Its totient is φ = 70270215232.

The previous prime is 140540430461. The next prime is 140540430467. The reversal of 140540430466 is 664034045041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 664034045041 = 14437 ⋅45995293.

It can be written as a sum of positive squares in only one way, i.e., 98771289841 + 41769140625 = 314279^2 + 204375^2 .

It is a super-2 number, since 2×140540430466² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140540430461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35135107615 + ... + 35135107618.

Almost surely, 2^140540430466 is an apocalyptic number.

140540430466 is a deficient number, since it is larger than the sum of its proper divisors (70270215236).

140540430466 is an equidigital number, since it uses as much as digits as its factorization.

140540430466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70270215235.

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 140540430466 in words is "one hundred forty billion, five hundred forty million, four hundred thirty thousand, four hundred sixty-six".