161103349901 has 8 divisors (see below), whose sum is σ = 182627279520. Its totient is φ = 140883900912.

The previous prime is 161103349873. The next prime is 161103349907. The reversal of 161103349901 is 109943301161.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161103349901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161103349907) 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, 326119895 + ... + 326120388.

It is an arithmetic number, because the mean of its divisors is an integer number (22828409940).

Almost surely, 2^161103349901 is an apocalyptic number.

It is an amenable number.

161103349901 is a deficient number, since it is larger than the sum of its proper divisors (21523929619).

161103349901 is a wasteful number, since it uses less digits than its factorization.

161103349901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652240315.

The product of its (nonzero) digits is 17496, while the sum is 38.

The spelling of 161103349901 in words is "one hundred sixty-one billion, one hundred three million, three hundred forty-nine thousand, nine hundred one".