202056063521 has 24 divisors (see below), whose sum is σ = 234655600320. Its totient is φ = 173362752576.

The previous prime is 202056063499. The next prime is 202056063551. The reversal of 202056063521 is 125360650202.

It is a de Polignac number, because none of the positive numbers 2^k-202056063521 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (202056063551) 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, 423461 + ... + 763826.

It is an arithmetic number, because the mean of its divisors is an integer number (9777316680).

Almost surely, 2^202056063521 is an apocalyptic number.

It is an amenable number.

202056063521 is a deficient number, since it is larger than the sum of its proper divisors (32599536799).

202056063521 is a wasteful number, since it uses less digits than its factorization.

202056063521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187385 (or 1187372 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 202056063521 in words is "two hundred two billion, fifty-six million, sixty-three thousand, five hundred twenty-one".