20404643424524 has 48 divisors (see below), whose sum is σ = 36642929178240. Its totient is φ = 9936630063360.

The previous prime is 20404643424511. The next prime is 20404643424601. The reversal of 20404643424524 is 42542434640402.

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, 87498119 + ... + 87731009.

It is an arithmetic number, because the mean of its divisors is an integer number (763394357880).

Almost surely, 2^{20404643424524} is an apocalyptic number.

It is an amenable number.

20404643424524 is a deficient number, since it is larger than the sum of its proper divisors (16238285753716).

20404643424524 is a wasteful number, since it uses less digits than its factorization.

20404643424524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234390 (or 234388 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 44.

The spelling of 20404643424524 in words is "twenty trillion, four hundred four billion, six hundred forty-three million, four hundred twenty-four thousand, five hundred twenty-four".