161402281343 has 8 divisors (see below), whose sum is σ = 161874467568. Its totient is φ = 160930306944.

The previous prime is 161402281321. The next prime is 161402281357. The reversal of 161402281343 is 343182204161.

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

It is a cyclic number.

It is not a de Polignac number, because 161402281343 - 2³⁰ = 160328539519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161402281373) 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, 1543196 + ... + 1644462.

It is an arithmetic number, because the mean of its divisors is an integer number (20234308446).

Almost surely, 2^161402281343 is an apocalyptic number.

161402281343 is a deficient number, since it is larger than the sum of its proper divisors (472186225).

161402281343 is a wasteful number, since it uses less digits than its factorization.

161402281343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105913.

The product of its (nonzero) digits is 27648, while the sum is 35.

The spelling of 161402281343 in words is "one hundred sixty-one billion, four hundred two million, two hundred eighty-one thousand, three hundred forty-three".