20346345312626 has 4 divisors (see below), whose sum is σ = 30519517968942. Its totient is φ = 10173172656312.

The previous prime is 20346345312613. The next prime is 20346345312649. The reversal of 20346345312626 is 62621354364302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20167293621601 + 179051691025 = 4490801^2 + 423145^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5086586328155 + ... + 5086586328158.

Almost surely, 2^{20346345312626} is an apocalyptic number.

20346345312626 is a deficient number, since it is larger than the sum of its proper divisors (10173172656316).

20346345312626 is a wasteful number, since it uses less digits than its factorization.

20346345312626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10173172656315.

The product of its (nonzero) digits is 3732480, while the sum is 47.

Adding to 20346345312626 its reverse (62621354364302), we get a palindrome (82967699676928).

The spelling of 20346345312626 in words is "twenty trillion, three hundred forty-six billion, three hundred forty-five million, three hundred twelve thousand, six hundred twenty-six".