1940164458426 has 24 divisors (see below), whose sum is σ = 4203718774164. Its totient is φ = 646717007040.

The previous prime is 1940164458413. The next prime is 1940164458461. The reversal of 1940164458426 is 6248544610491.

1940164458426 is a `hidden beast` number, since 1 + 9 + 4 + 0 + 16 + 44 + 584 + 2 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1793014731225 + 147149727201 = 1339035^2 + 383601^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3246766 + ... + 3797606.

Almost surely, 2^{1940164458426} is an apocalyptic number.

1940164458426 is an abundant number, since it is smaller than the sum of its proper divisors (2263554315738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1940164458426 is a wasteful number, since it uses less digits than its factorization.

1940164458426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746526 (or 746523 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 54.

The spelling of 1940164458426 in words is "one trillion, nine hundred forty billion, one hundred sixty-four million, four hundred fifty-eight thousand, four hundred twenty-six".