51161055606066 has 24 divisors (see below), whose sum is σ = 119027762022960. Its totient is φ = 14617444458792.

The previous prime is 51161055606041. The next prime is 51161055606079. The reversal of 51161055606066 is 66060655016115.

It is a super-2 number, since 2×51161055606066² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87008597676 + ... + 87008598263.

It is an arithmetic number, because the mean of its divisors is an integer number (4959490084290).

Almost surely, 2^{51161055606066} is an apocalyptic number.

51161055606066 is an abundant number, since it is smaller than the sum of its proper divisors (67866706416894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51161055606066 is a wasteful number, since it uses less digits than its factorization.

51161055606066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174017195958 (or 174017195951 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 48.

The spelling of 51161055606066 in words is "fifty-one trillion, one hundred sixty-one billion, fifty-five million, six hundred six thousand, sixty-six".