161700200177041 has 4 divisors (see below), whose sum is σ = 161778353973300. Its totient is φ = 161622046380784.

The previous prime is 161700200176943. The next prime is 161700200177059. The reversal of 161700200177041 is 140771002007161.

161700200177041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10351154417041 + 151349045760000 = 3217321^2 + 12302400^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161700200177041 is a prime.

It is a super-2 number, since 2×161700200177041² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161700200177081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39076895026 + ... + 39076899163.

It is an arithmetic number, because the mean of its divisors is an integer number (40444588493325).

Almost surely, 2^{161700200177041} is an apocalyptic number.

It is an amenable number.

161700200177041 is a deficient number, since it is larger than the sum of its proper divisors (78153796259).

161700200177041 is an equidigital number, since it uses as much as digits as its factorization.

161700200177041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78153796258.

The product of its (nonzero) digits is 16464, while the sum is 37.

The spelling of 161700200177041 in words is "one hundred sixty-one trillion, seven hundred billion, two hundred million, one hundred seventy-seven thousand, forty-one".