20305545242602 has 64 divisors (see below), whose sum is σ = 31117930704000. Its totient is φ = 9936102400000.

The previous prime is 20305545242597. The next prime is 20305545242629. The reversal of 20305545242602 is 20624254550302.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4562016477 + ... + 4562020927.

It is an arithmetic number, because the mean of its divisors is an integer number (486217667250).

Almost surely, 2^{20305545242602} is an apocalyptic number.

20305545242602 is a deficient number, since it is larger than the sum of its proper divisors (10812385461398).

20305545242602 is a wasteful number, since it uses less digits than its factorization.

20305545242602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5463.

The product of its (nonzero) digits is 576000, while the sum is 40.

Adding to 20305545242602 its reverse (20624254550302), we get a palindrome (40929799792904).

The spelling of 20305545242602 in words is "twenty trillion, three hundred five billion, five hundred forty-five million, two hundred forty-two thousand, six hundred two".