161301157244 has 12 divisors (see below), whose sum is σ = 282287419344. Its totient is φ = 80647608864.

The previous prime is 161301157183. The next prime is 161301157291. The reversal of 161301157244 is 442751103161.

161301157244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161301157244² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 617912 + ... + 839295.

It is an arithmetic number, because the mean of its divisors is an integer number (23523951612).

Almost surely, 2^161301157244 is an apocalyptic number.

It is an amenable number.

161301157244 is a deficient number, since it is larger than the sum of its proper divisors (120986262100).

161301157244 is a wasteful number, since it uses less digits than its factorization.

161301157244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484884 (or 1484882 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 161301157244 in words is "one hundred sixty-one billion, three hundred one million, one hundred fifty-seven thousand, two hundred forty-four".