201626424644 has 12 divisors (see below), whose sum is σ = 352851135168. Its totient is φ = 100811814600.

The previous prime is 201626424631. The next prime is 201626424683. The reversal of 201626424644 is 446424626102.

It is a super-2 number, since 2×201626424644² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18089 + ... + 635279.

It is an arithmetic number, because the mean of its divisors is an integer number (29404261264).

Almost surely, 2^201626424644 is an apocalyptic number.

It is an amenable number.

201626424644 is a deficient number, since it is larger than the sum of its proper divisors (151224710524).

201626424644 is a wasteful number, since it uses less digits than its factorization.

201626424644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698866 (or 698864 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 41.

The spelling of 201626424644 in words is "two hundred one billion, six hundred twenty-six million, four hundred twenty-four thousand, six hundred forty-four".