161076777 has 16 divisors (see below), whose sum is σ = 221064192. Its totient is φ = 104282640.

The previous prime is 161076761. The next prime is 161076803. The reversal of 161076777 is 777670161.

161076777 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 161076777 - 2⁴ = 161076761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161076757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8628 + ... + 19914.

It is an arithmetic number, because the mean of its divisors is an integer number (13816512).

Almost surely, 2^161076777 is an apocalyptic number.

It is an amenable number.

161076777 is a deficient number, since it is larger than the sum of its proper divisors (59987415).

161076777 is a wasteful number, since it uses less digits than its factorization.

161076777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11428.

The product of its (nonzero) digits is 86436, while the sum is 42.

The square root of 161076777 is about 12691.6026174790. The cubic root of 161076777 is about 544.0986442098.

It can be divided in two parts, 1610 and 76777, that added together give a palindrome (78387).

The spelling of 161076777 in words is "one hundred sixty-one million, seventy-six thousand, seven hundred seventy-seven".