20426214146 has 32 divisors (see below), whose sum is σ = 33220560240. Its totient is φ = 9363492864.

The previous prime is 20426214139. The next prime is 20426214163. The reversal of 20426214146 is 64141262402.

It can be written as a sum of positive squares in 8 ways, for example, as 17573479225 + 2852734921 = 132565^2 + 53411^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6444050 + ... + 6447218.

Almost surely, 2^20426214146 is an apocalyptic number.

20426214146 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20426214146 is a deficient number, since it is larger than the sum of its proper divisors (12794346094).

20426214146 is a wasteful number, since it uses less digits than its factorization.

20426214146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4790.

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 20426214146 its reverse (64141262402), we get a palindrome (84567476548).

The spelling of 20426214146 in words is "twenty billion, four hundred twenty-six million, two hundred fourteen thousand, one hundred forty-six".