16948673665 has 32 divisors (see below), whose sum is σ = 26459467776. Its totient is φ = 10106036160.

The previous prime is 16948673663. The next prime is 16948673669. The reversal of 16948673665 is 56637684961.

It is not a de Polignac number, because 16948673665 - 2¹ = 16948673663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16948673663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 948157 + ... + 965866.

It is an arithmetic number, because the mean of its divisors is an integer number (826858368).

Almost surely, 2^16948673665 is an apocalyptic number.

It is an amenable number.

16948673665 is a deficient number, since it is larger than the sum of its proper divisors (9510794111).

16948673665 is a wasteful number, since it uses less digits than its factorization.

16948673665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1914069.

The product of its digits is 39191040, while the sum is 61.

The spelling of 16948673665 in words is "sixteen billion, nine hundred forty-eight million, six hundred seventy-three thousand, six hundred sixty-five".