51001105501104 has 160 divisors (see below), whose sum is σ = 143910330220800. Its totient is φ = 15435543674880.

The previous prime is 51001105501091. The next prime is 51001105501111. The reversal of 51001105501104 is 40110550110015.

It is a super-2 number, since 2×51001105501104² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1526551152 + ... + 1526584560.

It is an arithmetic number, because the mean of its divisors is an integer number (899439563880).

Almost surely, 2^{51001105501104} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51001105501104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71955165110400).

51001105501104 is an abundant number, since it is smaller than the sum of its proper divisors (92909224719696).

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

51001105501104 is a wasteful number, since it uses less digits than its factorization.

51001105501104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36963 (or 36957 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 24.

Adding to 51001105501104 its reverse (40110550110015), we get a palindrome (91111655611119).

The spelling of 51001105501104 in words is "fifty-one trillion, one billion, one hundred five million, five hundred one thousand, one hundred four".