161062011775 has 24 divisors (see below), whose sum is σ = 236118503520. Its totient is φ = 106634156160.

The previous prime is 161062011727. The next prime is 161062011863. The reversal of 161062011775 is 577110260161.

It is a happy number.

It is not a de Polignac number, because 161062011775 - 2⁹ = 161062011263 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 15863104 + ... + 15873253.

It is an arithmetic number, because the mean of its divisors is an integer number (9838270980).

Almost surely, 2^161062011775 is an apocalyptic number.

161062011775 is a deficient number, since it is larger than the sum of its proper divisors (75056491745).

161062011775 is a wasteful number, since it uses less digits than its factorization.

161062011775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31736403 (or 31736398 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 37.

The spelling of 161062011775 in words is "one hundred sixty-one billion, sixty-two million, eleven thousand, seven hundred seventy-five".