161363724274 has 16 divisors (see below), whose sum is σ = 243645796800. Its totient is φ = 80150188624.

The previous prime is 161363724271. The next prime is 161363724307. The reversal of 161363724274 is 472427363161.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (161363724271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245494 + ... + 618865.

It is an arithmetic number, because the mean of its divisors is an integer number (15227862300).

Almost surely, 2^161363724274 is an apocalyptic number.

161363724274 is a deficient number, since it is larger than the sum of its proper divisors (82282072526).

161363724274 is a wasteful number, since it uses less digits than its factorization.

161363724274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864977.

The product of its digits is 1016064, while the sum is 46.

The spelling of 161363724274 in words is "one hundred sixty-one billion, three hundred sixty-three million, seven hundred twenty-four thousand, two hundred seventy-four".