51566120534 has 8 divisors (see below), whose sum is σ = 77350372848. Its totient is φ = 25782662920.

The previous prime is 51566120527. The next prime is 51566120539. The reversal of 51566120534 is 43502166515.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51566120539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5519 + ... + 321189.

It is an arithmetic number, because the mean of its divisors is an integer number (9668796606).

Almost surely, 2^51566120534 is an apocalyptic number.

51566120534 is a deficient number, since it is larger than the sum of its proper divisors (25784252314).

51566120534 is a wasteful number, since it uses less digits than its factorization.

51566120534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397350.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 51566120534 in words is "fifty-one billion, five hundred sixty-six million, one hundred twenty thousand, five hundred thirty-four".