51100010010105 has 48 divisors (see below), whose sum is σ = 95714377473600. Its totient is φ = 23211214685568.

The previous prime is 51100010010089. The next prime is 51100010010109. The reversal of 51100010010105 is 50101001000115.

It is not a de Polignac number, because 51100010010105 - 2⁴ = 51100010010089 is a prime.

It is a super-2 number, since 2×51100010010105² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (51100010010109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 221298055 + ... + 221528844.

It is an arithmetic number, because the mean of its divisors is an integer number (1994049530700).

Almost surely, 2^{51100010010105} is an apocalyptic number.

It is an amenable number.

51100010010105 is a deficient number, since it is larger than the sum of its proper divisors (44614367463495).

51100010010105 is a wasteful number, since it uses less digits than its factorization.

51100010010105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442827078 (or 442827071 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 15.

The spelling of 51100010010105 in words is "fifty-one trillion, one hundred billion, ten million, ten thousand, one hundred five".