16671265536746 has 4 divisors (see below), whose sum is σ = 25006898305122. Its totient is φ = 8335632768372.

The previous prime is 16671265536721. The next prime is 16671265536787. The reversal of 16671265536746 is 64763556217661.

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., 9192654099721 + 7478611437025 = 3031939^2 + 2734705^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4167816384185 + ... + 4167816384188.

Almost surely, 2^{16671265536746} is an apocalyptic number.

16671265536746 is a deficient number, since it is larger than the sum of its proper divisors (8335632768376).

16671265536746 is an equidigital number, since it uses as much as digits as its factorization.

16671265536746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8335632768375.

The product of its digits is 228614400, while the sum is 65.

The spelling of 16671265536746 in words is "sixteen trillion, six hundred seventy-one billion, two hundred sixty-five million, five hundred thirty-six thousand, seven hundred forty-six".