161368424146 has 16 divisors (see below), whose sum is σ = 242641380600. Its totient is φ = 80488038400.

The previous prime is 161368424117. The next prime is 161368424213. The reversal of 161368424146 is 641424863161.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 139461168025 + 21907256121 = 373445^2 + 148011^2 .

It is a super-2 number, since 2×161368424146² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 161368424096 and 161368424105.

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, 5193810 + ... + 5224786.

Almost surely, 2^161368424146 is an apocalyptic number.

161368424146 is a deficient number, since it is larger than the sum of its proper divisors (81272956454).

161368424146 is a wasteful number, since it uses less digits than its factorization.

161368424146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37229.

The product of its digits is 663552, while the sum is 46.

The spelling of 161368424146 in words is "one hundred sixty-one billion, three hundred sixty-eight million, four hundred twenty-four thousand, one hundred forty-six".