361971238161 has 8 divisors (see below), whose sum is σ = 519753572800. Its totient is φ = 222751531152.

The previous prime is 361971238147. The next prime is 361971238193. The reversal of 361971238161 is 161832179163.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 361971238161 - 2¹⁹ = 361970713873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 361971238161.

It is not an unprimeable number, because it can be changed into a prime (361971238061) 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, 4640656861 + ... + 4640656938.

It is an arithmetic number, because the mean of its divisors is an integer number (64969196600).

Almost surely, 2^361971238161 is an apocalyptic number.

It is an amenable number.

361971238161 is a deficient number, since it is larger than the sum of its proper divisors (157782334639).

361971238161 is a wasteful number, since it uses less digits than its factorization.

361971238161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9281313815.

The product of its digits is 326592, while the sum is 48.

The spelling of 361971238161 in words is "three hundred sixty-one billion, nine hundred seventy-one million, two hundred thirty-eight thousand, one hundred sixty-one".