4145311345646 has 4 divisors (see below), whose sum is σ = 6217967018472. Its totient is φ = 2072655672822.

The previous prime is 4145311345561. The next prime is 4145311345649. The reversal of 4145311345646 is 6465431135414.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4145311345646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4145311345649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1036327836410 + ... + 1036327836413.

It is an arithmetic number, because the mean of its divisors is an integer number (1554491754618).

Almost surely, 2^{4145311345646} is an apocalyptic number.

4145311345646 is a deficient number, since it is larger than the sum of its proper divisors (2072655672826).

4145311345646 is a wasteful number, since it uses less digits than its factorization.

4145311345646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2072655672825.

The product of its digits is 2073600, while the sum is 47.

The spelling of 4145311345646 in words is "four trillion, one hundred forty-five billion, three hundred eleven million, three hundred forty-five thousand, six hundred forty-six".