20610115346 has 4 divisors (see below), whose sum is σ = 30915173022. Its totient is φ = 10305057672.

The previous prime is 20610115303. The next prime is 20610115363. The reversal of 20610115346 is 64351101602.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64351101602 = 2 ⋅32175550801.

It can be written as a sum of positive squares in only one way, i.e., 20589093121 + 21022225 = 143489^2 + 4585^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5152528835 + ... + 5152528838.

Almost surely, 2^20610115346 is an apocalyptic number.

20610115346 is a deficient number, since it is larger than the sum of its proper divisors (10305057676).

20610115346 is a wasteful number, since it uses less digits than its factorization.

20610115346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10305057675.

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 20610115346 its reverse (64351101602), we get a palindrome (84961216948).

The spelling of 20610115346 in words is "twenty billion, six hundred ten million, one hundred fifteen thousand, three hundred forty-six".