20602645263426 has 8 divisors (see below), whose sum is σ = 41205290526864. Its totient is φ = 6867548421140.

The previous prime is 20602645263383. The next prime is 20602645263469. The reversal of 20602645263426 is 62436254620602.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20602645263383) and next prime (20602645263469).

It is a sphenic number, since it is the product of 3 distinct primes.

20602645263426 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1716887105280 + ... + 1716887105291.

It is an arithmetic number, because the mean of its divisors is an integer number (5150661315858).

Almost surely, 2^{20602645263426} is an apocalyptic number.

20602645263426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20602645263426 is a wasteful number, since it uses less digits than its factorization.

20602645263426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3433774210576.

The product of its (nonzero) digits is 4976640, while the sum is 48.

The spelling of 20602645263426 in words is "twenty trillion, six hundred two billion, six hundred forty-five million, two hundred sixty-three thousand, four hundred twenty-six".