20236246254557 has 8 divisors (see below), whose sum is σ = 20292122395392. Its totient is φ = 20180374117200.

The previous prime is 20236246254467. The next prime is 20236246254607. The reversal of 20236246254557 is 75545264263202.

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

It is a cyclic number.

It is not a de Polignac number, because 20236246254557 - 2²⁴ = 20236229477341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20236246254499 and 20236246254508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20236246250557) by changing a digit.

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, 9267632 + ... + 11241062.

It is an arithmetic number, because the mean of its divisors is an integer number (2536515299424).

Almost surely, 2^{20236246254557} is an apocalyptic number.

It is an amenable number.

20236246254557 is a deficient number, since it is larger than the sum of its proper divisors (55876140835).

20236246254557 is a wasteful number, since it uses less digits than its factorization.

20236246254557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001739.

The product of its (nonzero) digits is 24192000, while the sum is 53.

The spelling of 20236246254557 in words is "twenty trillion, two hundred thirty-six billion, two hundred forty-six million, two hundred fifty-four thousand, five hundred fifty-seven".