161106765942 has 16 divisors (see below), whose sum is σ = 322647206400. Its totient is φ = 53629976232.

The previous prime is 161106765907. The next prime is 161106765973. The reversal of 161106765942 is 249567601161.

It is a super-2 number, since 2×161106765942² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 161106765891 and 161106765900.

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 7 ways as a sum of consecutive naturals, for example, 18064942 + ... + 18073857.

It is an arithmetic number, because the mean of its divisors is an integer number (20165450400).

Almost surely, 2^161106765942 is an apocalyptic number.

161106765942 is an abundant number, since it is smaller than the sum of its proper divisors (161540440458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161106765942 is a wasteful number, since it uses less digits than its factorization.

161106765942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36139547.

The product of its (nonzero) digits is 544320, while the sum is 48.

The spelling of 161106765942 in words is "one hundred sixty-one billion, one hundred six million, seven hundred sixty-five thousand, nine hundred forty-two".