1406656603042 has 4 divisors (see below), whose sum is σ = 2109984904566. Its totient is φ = 703328301520.

The previous prime is 1406656603031. The next prime is 1406656603049. The reversal of 1406656603042 is 2403066566041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1082142948121 + 324513654921 = 1040261^2 + 569661^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1406656603042.

It is not an unprimeable number, because it can be changed into a prime (1406656603049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 351664150759 + ... + 351664150762.

Almost surely, 2^{1406656603042} is an apocalyptic number.

1406656603042 is a deficient number, since it is larger than the sum of its proper divisors (703328301524).

1406656603042 is an equidigital number, since it uses as much as digits as its factorization.

1406656603042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703328301523.

The product of its (nonzero) digits is 622080, while the sum is 43.

The spelling of 1406656603042 in words is "one trillion, four hundred six billion, six hundred fifty-six million, six hundred three thousand, forty-two".