201622744417 has 4 divisors (see below), whose sum is σ = 210388950720. Its totient is φ = 192856538116.

The previous prime is 201622744387. The next prime is 201622744423. The reversal of 201622744417 is 714447226102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201622744417 - 2¹¹ = 201622742369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201622744417.

It is not an unprimeable number, because it can be changed into a prime (201622744447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4383103117 + ... + 4383103162.

It is an arithmetic number, because the mean of its divisors is an integer number (52597237680).

Almost surely, 2^201622744417 is an apocalyptic number.

It is an amenable number.

201622744417 is a deficient number, since it is larger than the sum of its proper divisors (8766206303).

201622744417 is an equidigital number, since it uses as much as digits as its factorization.

201622744417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8766206302.

The product of its (nonzero) digits is 150528, while the sum is 40.

The spelling of 201622744417 in words is "two hundred one billion, six hundred twenty-two million, seven hundred forty-four thousand, four hundred seventeen".