8210201425557 has 24 divisors (see below), whose sum is σ = 11554029033120. Its totient is φ = 5185114175520.

The previous prime is 8210201425549. The next prime is 8210201425577. The reversal of 8210201425557 is 7555241020128.

It is not a de Polignac number, because 8210201425557 - 2³ = 8210201425549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8210201425577) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21185307 + ... + 21569367.

It is an arithmetic number, because the mean of its divisors is an integer number (481417876380).

Almost surely, 2^{8210201425557} is an apocalyptic number.

It is an amenable number.

8210201425557 is a deficient number, since it is larger than the sum of its proper divisors (3343827607563).

8210201425557 is a wasteful number, since it uses less digits than its factorization.

8210201425557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403841 (or 403822 counting only the distinct ones).

The product of its (nonzero) digits is 224000, while the sum is 42.

The spelling of 8210201425557 in words is "eight trillion, two hundred ten billion, two hundred one million, four hundred twenty-five thousand, five hundred fifty-seven".