201626425021 has 8 divisors (see below), whose sum is σ = 232667387264. Its totient is φ = 171144759600.

The previous prime is 201626425001. The next prime is 201626425057. The reversal of 201626425021 is 120524626102.

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 201626425021 - 2¹⁷ = 201626293949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201626425001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139823430 + ... + 139824871.

It is an arithmetic number, because the mean of its divisors is an integer number (29083423408).

Almost surely, 2^201626425021 is an apocalyptic number.

It is an amenable number.

201626425021 is a deficient number, since it is larger than the sum of its proper divisors (31040962243).

201626425021 is a wasteful number, since it uses less digits than its factorization.

201626425021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279648411.

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 201626425021 in words is "two hundred one billion, six hundred twenty-six million, four hundred twenty-five thousand, twenty-one".