51100061011005 has 64 divisors (see below), whose sum is σ = 84645724608000. Its totient is φ = 26292972625920.

The previous prime is 51100061011003. The next prime is 51100061011007. The reversal of 51100061011005 is 50011016000115.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (51100061011003) and next prime (51100061011007).

It is not a de Polignac number, because 51100061011005 - 2¹ = 51100061011003 is a prime.

It is a super-2 number, since 2×51100061011005² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51100061011003) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3813715296 + ... + 3813728694.

It is an arithmetic number, because the mean of its divisors is an integer number (1322589447000).

Almost surely, 2^{51100061011005} is an apocalyptic number.

It is an amenable number.

51100061011005 is a deficient number, since it is larger than the sum of its proper divisors (33545663596995).

51100061011005 is a wasteful number, since it uses less digits than its factorization.

51100061011005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19654.

The product of its (nonzero) digits is 150, while the sum is 21.

The spelling of 51100061011005 in words is "fifty-one trillion, one hundred billion, sixty-one million, eleven thousand, five".