161136144766 has 16 divisors (see below), whose sum is σ = 244917469584. Its totient is φ = 79503270784.

The previous prime is 161136144739. The next prime is 161136144769. The reversal of 161136144766 is 667441631161.

It is a super-3 number, since 3×161136144766³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161136144769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1519165 + ... + 1621768.

It is an arithmetic number, because the mean of its divisors is an integer number (15307341849).

Almost surely, 2^161136144766 is an apocalyptic number.

161136144766 is a deficient number, since it is larger than the sum of its proper divisors (83781324818).

161136144766 is a wasteful number, since it uses less digits than its factorization.

161136144766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3141275.

The product of its digits is 435456, while the sum is 46.

The spelling of 161136144766 in words is "one hundred sixty-one billion, one hundred thirty-six million, one hundred forty-four thousand, seven hundred sixty-six".