51630206263222 has 16 divisors (see below), whose sum is σ = 78216355774800. Its totient is φ = 25558115522400.

The previous prime is 51630206263123. The next prime is 51630206263283. The reversal of 51630206263222 is 22236260203615.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3240897 + ... + 10666012.

It is an arithmetic number, because the mean of its divisors is an integer number (4888522235925).

Almost surely, 2^{51630206263222} is an apocalyptic number.

51630206263222 is a deficient number, since it is larger than the sum of its proper divisors (26586149511578).

51630206263222 is a wasteful number, since it uses less digits than its factorization.

51630206263222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13925391.

The product of its (nonzero) digits is 311040, while the sum is 40.

Adding to 51630206263222 its reverse (22236260203615), we get a palindrome (73866466466837).

The spelling of 51630206263222 in words is "fifty-one trillion, six hundred thirty billion, two hundred six million, two hundred sixty-three thousand, two hundred twenty-two".