20344502402654 has 16 divisors (see below), whose sum is σ = 30674287657728. Its totient is φ = 10119807391512.

The previous prime is 20344502402617. The next prime is 20344502402681. The reversal of 20344502402654 is 45620420544302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16282124 + ... + 17487039.

It is an arithmetic number, because the mean of its divisors is an integer number (1917142978608).

Almost surely, 2^{20344502402654} is an apocalyptic number.

20344502402654 is a deficient number, since it is larger than the sum of its proper divisors (10329785255074).

20344502402654 is a wasteful number, since it uses less digits than its factorization.

20344502402654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33770719.

The product of its (nonzero) digits is 921600, while the sum is 41.

Adding to 20344502402654 its reverse (45620420544302), we get a palindrome (65964922946956).

The spelling of 20344502402654 in words is "twenty trillion, three hundred forty-four billion, five hundred two million, four hundred two thousand, six hundred fifty-four".