51101061066012 has 24 divisors (see below), whose sum is σ = 119834984080000. Its totient is φ = 16948090604016.

The previous prime is 51101061065983. The next prime is 51101061066037. The reversal of 51101061066012 is 21066016010115.

It is a super-2 number, since 2×51101061066012² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10699549762 + ... + 10699554537.

Almost surely, 2^{51101061066012} is an apocalyptic number.

It is an amenable number.

51101061066012 is an abundant number, since it is smaller than the sum of its proper divisors (68733923013988).

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

51101061066012 is a wasteful number, since it uses less digits than its factorization.

51101061066012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21399104505 (or 21399104503 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 30.

Adding to 51101061066012 its reverse (21066016010115), we get a palindrome (72167077076127).

The spelling of 51101061066012 in words is "fifty-one trillion, one hundred one billion, sixty-one million, sixty-six thousand, twelve".