51170155246 has 16 divisors (see below), whose sum is σ = 87768428544. Its totient is φ = 21918025944.

The previous prime is 51170155243. The next prime is 51170155307. The reversal of 51170155246 is 64255107115.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51170155243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 976950 + ... + 1027993.

It is an arithmetic number, because the mean of its divisors is an integer number (5485526784).

Almost surely, 2^51170155246 is an apocalyptic number.

51170155246 is a deficient number, since it is larger than the sum of its proper divisors (36598273298).

51170155246 is a wasteful number, since it uses less digits than its factorization.

51170155246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2006775.

The product of its (nonzero) digits is 42000, while the sum is 37.

The spelling of 51170155246 in words is "fifty-one billion, one hundred seventy million, one hundred fifty-five thousand, two hundred forty-six".