17961092161015 has 16 divisors (see below), whose sum is σ = 21568563860256. Its totient is φ = 14358707824000.

The previous prime is 17961092160989. The next prime is 17961092161081. The reversal of 17961092161015 is 51016129016971.

It is not a de Polignac number, because 17961092161015 - 2⁷ = 17961092160887 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 17961092161015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49647885 + ... + 50008345.

It is an arithmetic number, because the mean of its divisors is an integer number (1348035241266).

Almost surely, 2^{17961092161015} is an apocalyptic number.

17961092161015 is a deficient number, since it is larger than the sum of its proper divisors (3607471699241).

17961092161015 is a wasteful number, since it uses less digits than its factorization.

17961092161015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367490.

The product of its (nonzero) digits is 204120, while the sum is 49.

The spelling of 17961092161015 in words is "seventeen trillion, nine hundred sixty-one billion, ninety-two million, one hundred sixty-one thousand, fifteen".