51167222206 has 4 divisors (see below), whose sum is σ = 76750833312. Its totient is φ = 25583611102.

The previous prime is 51167222177. The next prime is 51167222207. The reversal of 51167222206 is 60222276115.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51167222207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12791805550 + ... + 12791805553.

It is an arithmetic number, because the mean of its divisors is an integer number (19187708328).

Almost surely, 2^51167222206 is an apocalyptic number.

51167222206 is a deficient number, since it is larger than the sum of its proper divisors (25583611106).

51167222206 is a wasteful number, since it uses less digits than its factorization.

51167222206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25583611105.

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 51167222206 in words is "fifty-one billion, one hundred sixty-seven million, two hundred twenty-two thousand, two hundred six".