42660140354 has 12 divisors (see below), whose sum is σ = 69291175266. Its totient is φ = 19689295392.

The previous prime is 42660140339. The next prime is 42660140363. The reversal of 42660140354 is 45304106624.

It can be written as a sum of positive squares in 3 ways, for example, as 17099485225 + 25560655129 = 130765^2 + 159877^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63106379 + ... + 63107054.

Almost surely, 2^42660140354 is an apocalyptic number.

42660140354 is a deficient number, since it is larger than the sum of its proper divisors (26631034912).

42660140354 is a wasteful number, since it uses less digits than its factorization.

42660140354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126213461 (or 126213448 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 42660140354 its reverse (45304106624), we get a palindrome (87964246978).

The spelling of 42660140354 in words is "forty-two billion, six hundred sixty million, one hundred forty thousand, three hundred fifty-four".