41605643146 has 4 divisors (see below), whose sum is σ = 62408464722. Its totient is φ = 20802821572.

The previous prime is 41605643113. The next prime is 41605643159. The reversal of 41605643146 is 64134650614.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64134650614 = 2 ⋅32067325307.

It can be written as a sum of positive squares in only one way, i.e., 40104468121 + 1501175025 = 200261^2 + 38745^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 41605643099 and 41605643108.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10401410785 + ... + 10401410788.

Almost surely, 2^41605643146 is an apocalyptic number.

41605643146 is a deficient number, since it is larger than the sum of its proper divisors (20802821576).

41605643146 is a wasteful number, since it uses less digits than its factorization.

41605643146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20802821575.

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 41605643146 in words is "forty-one billion, six hundred five million, six hundred forty-three thousand, one hundred forty-six".