20464032514 has 4 divisors (see below), whose sum is σ = 30696048774. Its totient is φ = 10232016256.

The previous prime is 20464032503. The next prime is 20464032553. The reversal of 20464032514 is 41523046402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41523046402 = 2 ⋅20761523201.

It can be written as a sum of positive squares in only one way, i.e., 11606399289 + 8857633225 = 107733^2 + 94115^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5116008127 + ... + 5116008130.

Almost surely, 2^20464032514 is an apocalyptic number.

20464032514 is a deficient number, since it is larger than the sum of its proper divisors (10232016260).

20464032514 is a wasteful number, since it uses less digits than its factorization.

20464032514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10232016259.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 20464032514 its reverse (41523046402), we get a palindrome (61987078916).

The spelling of 20464032514 in words is "twenty billion, four hundred sixty-four million, thirty-two thousand, five hundred fourteen".