51505616006 has 32 divisors (see below), whose sum is σ = 88115428800. Its totient is φ = 22368439296.

The previous prime is 51505615991. The next prime is 51505616027. The reversal of 51505616006 is 60061650515.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2490095 + ... + 2510693.

It is an arithmetic number, because the mean of its divisors is an integer number (2753607150).

Almost surely, 2^51505616006 is an apocalyptic number.

51505616006 is a deficient number, since it is larger than the sum of its proper divisors (36609812794).

51505616006 is a wasteful number, since it uses less digits than its factorization.

51505616006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26288.

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 51505616006 in words is "fifty-one billion, five hundred five million, six hundred sixteen thousand, six".