1640361353306 has 24 divisors (see below), whose sum is σ = 2661238187580. Its totient is φ = 753839894016.

The previous prime is 1640361353261. The next prime is 1640361353329. The reversal of 1640361353306 is 6033531630461.

It can be written as a sum of positive squares in 6 ways, for example, as 186588577681 + 1453772775625 = 431959^2 + 1205725^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 830450 + ... + 1992578.

Almost surely, 2^{1640361353306} is an apocalyptic number.

1640361353306 is a deficient number, since it is larger than the sum of its proper divisors (1020876834274).

1640361353306 is a wasteful number, since it uses less digits than its factorization.

1640361353306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162610 (or 1162377 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 41.

Adding to 1640361353306 its reverse (6033531630461), we get a palindrome (7673892983767).

The spelling of 1640361353306 in words is "one trillion, six hundred forty billion, three hundred sixty-one million, three hundred fifty-three thousand, three hundred six".