51151055066 has 8 divisors (see below), whose sum is σ = 76731787380. Its totient is φ = 25573792608.

The previous prime is 51151055063. The next prime is 51151055071. The reversal of 51151055066 is 66055015115.

It can be written as a sum of positive squares in 2 ways, for example, as 47275370041 + 3875685025 = 217429^2 + 62255^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51151055063) 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, 830291 + ... + 889766.

Almost surely, 2^51151055066 is an apocalyptic number.

51151055066 is a deficient number, since it is larger than the sum of its proper divisors (25580732314).

51151055066 is a wasteful number, since it uses less digits than its factorization.

51151055066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1734928.

The product of its (nonzero) digits is 22500, while the sum is 35.

The spelling of 51151055066 in words is "fifty-one billion, one hundred fifty-one million, fifty-five thousand, sixty-six".