161472890143 has 8 divisors (see below), whose sum is σ = 168627312000. Its totient is φ = 154329623448.

The previous prime is 161472890119. The next prime is 161472890167. The reversal of 161472890143 is 341098274161.

It is an interprime number because it is at equal distance from previous prime (161472890119) and next prime (161472890167).

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 161472890143 - 2⁹ = 161472889631 is a prime.

It is a super-2 number, since 2×161472890143² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161472890093 and 161472890102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161472890443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2759193 + ... + 2817106.

It is an arithmetic number, because the mean of its divisors is an integer number (21078414000).

Almost surely, 2^161472890143 is an apocalyptic number.

161472890143 is a deficient number, since it is larger than the sum of its proper divisors (7154421857).

161472890143 is a wasteful number, since it uses less digits than its factorization.

161472890143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5577581.

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 161472890143 in words is "one hundred sixty-one billion, four hundred seventy-two million, eight hundred ninety thousand, one hundred forty-three".