161770701 has 16 divisors (see below), whose sum is σ = 219170240. Its totient is φ = 106116480.

The previous prime is 161770673. The next prime is 161770709. The reversal of 161770701 is 107077161.

161770701 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 161770701 - 2⁵ = 161770669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161770709) 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, 150795 + ... + 151863.

It is an arithmetic number, because the mean of its divisors is an integer number (13698140).

Almost surely, 2^161770701 is an apocalyptic number.

It is an amenable number.

161770701 is a deficient number, since it is larger than the sum of its proper divisors (57399539).

161770701 is a wasteful number, since it uses less digits than its factorization.

161770701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836.

The product of its (nonzero) digits is 2058, while the sum is 30.

The square root of 161770701 is about 12718.9111562272. The cubic root of 161770701 is about 544.8788564452.

The spelling of 161770701 in words is "one hundred sixty-one million, seven hundred seventy thousand, seven hundred one".