20655344355602 has 32 divisors (see below), whose sum is σ = 34751800597248. Its totient is φ = 9125997840000.

The previous prime is 20655344355533. The next prime is 20655344355617.

It is a happy number.

20655344355602 is nontrivially palindromic in base 10.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 42005549 + ... + 42494432.

It is an arithmetic number, because the mean of its divisors is an integer number (1085993768664).

Almost surely, 2^{20655344355602} is an apocalyptic number.

20655344355602 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20655344355602 is a deficient number, since it is larger than the sum of its proper divisors (14096456241646).

20655344355602 is a wasteful number, since it uses less digits than its factorization.

20655344355602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84500306.

The product of its (nonzero) digits is 12960000, while the sum is 50.

The spelling of 20655344355602 in words is "twenty trillion, six hundred fifty-five billion, three hundred forty-four million, three hundred fifty-five thousand, six hundred two".