201422415256 has 16 divisors (see below), whose sum is σ = 399882736440. Its totient is φ = 94787018880.

The previous prime is 201422415247. The next prime is 201422415263. The reversal of 201422415256 is 652514224102.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

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, 740523450 + ... + 740523721.

Almost surely, 2^201422415256 is an apocalyptic number.

It is an amenable number.

201422415256 is a deficient number, since it is larger than the sum of its proper divisors (198460321184).

201422415256 is a wasteful number, since it uses less digits than its factorization.

201422415256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481047194 (or 1481047190 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 201422415256 its reverse (652514224102), we get a palindrome (853936639358).

The spelling of 201422415256 in words is "two hundred one billion, four hundred twenty-two million, four hundred fifteen thousand, two hundred fifty-six".