1669696481047 has 8 divisors (see below), whose sum is σ = 1911043202976. Its totient is φ = 1429054422432.

The previous prime is 1669696481029. The next prime is 1669696481053. The reversal of 1669696481047 is 7401846969661.

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

It is not a de Polignac number, because 1669696481047 - 2¹¹ = 1669696478999 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 (1669696481147) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 176160748 + ... + 176170225.

It is an arithmetic number, because the mean of its divisors is an integer number (238880400372).

Almost surely, 2^{1669696481047} is an apocalyptic number.

1669696481047 is a deficient number, since it is larger than the sum of its proper divisors (241346721929).

1669696481047 is an equidigital number, since it uses as much as digits as its factorization.

1669696481047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352331657.

The product of its (nonzero) digits is 94058496, while the sum is 67.

The spelling of 1669696481047 in words is "one trillion, six hundred sixty-nine billion, six hundred ninety-six million, four hundred eighty-one thousand, forty-seven".