161652554143 has 8 divisors (see below), whose sum is σ = 166611228336. Its totient is φ = 156742257600.

The previous prime is 161652554117. The next prime is 161652554149. The reversal of 161652554143 is 341455256161.

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 161652554143 - 2²⁹ = 161115683231 is a prime.

It is a super-2 number, since 2×161652554143² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 161652554143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161652554149) 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, 12087628 + ... + 12100993.

It is an arithmetic number, because the mean of its divisors is an integer number (20826403542).

Almost surely, 2^161652554143 is an apocalyptic number.

161652554143 is a deficient number, since it is larger than the sum of its proper divisors (4958674193).

161652554143 is a wasteful number, since it uses less digits than its factorization.

161652554143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24188825.

The product of its digits is 432000, while the sum is 43.

The spelling of 161652554143 in words is "one hundred sixty-one billion, six hundred fifty-two million, five hundred fifty-four thousand, one hundred forty-three".