51101101072 has 20 divisors (see below), whose sum is σ = 113152438336. Its totient is φ = 21900471840.

The previous prime is 51101101061. The next prime is 51101101097. The reversal of 51101101072 is 27010110115.

It is a super-2 number, since 2×51101101072² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228129804 + ... + 228130027.

Almost surely, 2^51101101072 is an apocalyptic number.

It is an amenable number.

51101101072 is an abundant number, since it is smaller than the sum of its proper divisors (62051337264).

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

51101101072 is a wasteful number, since it uses less digits than its factorization.

51101101072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456259846 (or 456259840 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 19.

Adding to 51101101072 its reverse (27010110115), we get a palindrome (78111211187).

The spelling of 51101101072 in words is "fifty-one billion, one hundred one million, one hundred one thousand, seventy-two".