20346430516 has 24 divisors (see below), whose sum is σ = 37487156000. Its totient is φ = 9636011424.

The previous prime is 20346430513. The next prime is 20346430541. The reversal of 20346430516 is 61503464302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20346430513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451915 + ... + 494893.

Almost surely, 2^20346430516 is an apocalyptic number.

It is an amenable number.

20346430516 is a deficient number, since it is larger than the sum of its proper divisors (17140725484).

20346430516 is a wasteful number, since it uses less digits than its factorization.

20346430516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49231 (or 49229 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 20346430516 its reverse (61503464302), we get a palindrome (81849894818).

The spelling of 20346430516 in words is "twenty billion, three hundred forty-six million, four hundred thirty thousand, five hundred sixteen".