161142342356 has 24 divisors (see below), whose sum is σ = 291959705856. Its totient is φ = 77740709760.

The previous prime is 161142342337. The next prime is 161142342371. The reversal of 161142342356 is 653243241161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1886306 + ... + 1969881.

It is an arithmetic number, because the mean of its divisors is an integer number (12164987744).

Almost surely, 2^161142342356 is an apocalyptic number.

It is an amenable number.

161142342356 is a deficient number, since it is larger than the sum of its proper divisors (130817363500).

161142342356 is a wasteful number, since it uses less digits than its factorization.

161142342356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3856559 (or 3856557 counting only the distinct ones).

The product of its digits is 103680, while the sum is 38.

The spelling of 161142342356 in words is "one hundred sixty-one billion, one hundred forty-two million, three hundred forty-two thousand, three hundred fifty-six".