51612156122 has 16 divisors (see below), whose sum is σ = 80142020352. Its totient is φ = 24902866560.

The previous prime is 51612156097. The next prime is 51612156139. The reversal of 51612156122 is 22165121615.

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, 1157228 + ... + 1200999.

It is an arithmetic number, because the mean of its divisors is an integer number (5008876272).

Almost surely, 2^51612156122 is an apocalyptic number.

51612156122 is a deficient number, since it is larger than the sum of its proper divisors (28529864230).

51612156122 is a wasteful number, since it uses less digits than its factorization.

51612156122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2358613.

The product of its digits is 7200, while the sum is 32.

Adding to 51612156122 its reverse (22165121615), we get a palindrome (73777277737).

The spelling of 51612156122 in words is "fifty-one billion, six hundred twelve million, one hundred fifty-six thousand, one hundred twenty-two".