20413205346426 has 32 divisors (see below), whose sum is σ = 42270713235456. Its totient is φ = 6565010958000.

The previous prime is 20413205346419. The next prime is 20413205346431. The reversal of 20413205346426 is 62464350231402.

It is a happy number.

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, 165721540 + ... + 165844671.

It is an arithmetic number, because the mean of its divisors is an integer number (1320959788608).

Almost surely, 2^{20413205346426} is an apocalyptic number.

20413205346426 is an abundant number, since it is smaller than the sum of its proper divisors (21857507889030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20413205346426 is a wasteful number, since it uses less digits than its factorization.

20413205346426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331566578.

The product of its (nonzero) digits is 829440, while the sum is 42.

Adding to 20413205346426 its reverse (62464350231402), we get a palindrome (82877555577828).

The spelling of 20413205346426 in words is "twenty trillion, four hundred thirteen billion, two hundred five million, three hundred forty-six thousand, four hundred twenty-six".