20262232773146 has 24 divisors (see below), whose sum is σ = 38075184664020. Its totient is φ = 8015828349312.

The previous prime is 20262232773121. The next prime is 20262232773187. The reversal of 20262232773146 is 64137723226202.

It can be written as a sum of positive squares in 2 ways, for example, as 19846802250625 + 415430522521 = 4454975^2 + 644539^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20262232773146.

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, 7952209391 + ... + 7952211938.

Almost surely, 2^{20262232773146} is an apocalyptic number.

20262232773146 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20262232773146 is a deficient number, since it is larger than the sum of its proper divisors (17812951890874).

20262232773146 is a wasteful number, since it uses less digits than its factorization.

20262232773146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15904421358 (or 15904421351 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 47.

Adding to 20262232773146 its reverse (64137723226202), we get a palindrome (84399955999348).

The spelling of 20262232773146 in words is "twenty trillion, two hundred sixty-two billion, two hundred thirty-two million, seven hundred seventy-three thousand, one hundred forty-six".