51566121434 has 8 divisors (see below), whose sum is σ = 77353815360. Its totient is φ = 25781516316.

The previous prime is 51566121413. The next prime is 51566121457. The reversal of 51566121434 is 43412166515.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 730004 + ... + 797519.

It is an arithmetic number, because the mean of its divisors is an integer number (9669226920).

Almost surely, 2^51566121434 is an apocalyptic number.

51566121434 is a deficient number, since it is larger than the sum of its proper divisors (25787693926).

51566121434 is a wasteful number, since it uses less digits than its factorization.

51566121434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544404.

The product of its digits is 86400, while the sum is 38.

Adding to 51566121434 its reverse (43412166515), we get a palindrome (94978287949).

The spelling of 51566121434 in words is "fifty-one billion, five hundred sixty-six million, one hundred twenty-one thousand, four hundred thirty-four".