20340132346 has 32 divisors (see below), whose sum is σ = 32190132240. Its totient is φ = 9624416256.

The previous prime is 20340132311. The next prime is 20340132383. The reversal of 20340132346 is 64323104302.

It can be written as a sum of positive squares in 8 ways, for example, as 11693178225 + 8646954121 = 108135^2 + 92989^2 .

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, 3738340 + ... + 3743776.

Almost surely, 2^20340132346 is an apocalyptic number.

20340132346 is a deficient number, since it is larger than the sum of its proper divisors (11849999894).

20340132346 is a wasteful number, since it uses less digits than its factorization.

20340132346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6738.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 20340132346 its reverse (64323104302), we get a palindrome (84663236648).

The spelling of 20340132346 in words is "twenty billion, three hundred forty million, one hundred thirty-two thousand, three hundred forty-six".