51111110006 has 16 divisors (see below), whose sum is σ = 83777422608. Its totient is φ = 23193139200.

The previous prime is 51111109993. The next prime is 51111110009. The reversal of 51111110006 is 60001111115.

It is a super-2 number, since 2×51111110006² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51111110009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1945835 + ... + 1971926.

It is an arithmetic number, because the mean of its divisors is an integer number (5236088913).

Almost surely, 2^51111110006 is an apocalyptic number.

51111110006 is a deficient number, since it is larger than the sum of its proper divisors (32666312602).

51111110006 is a wasteful number, since it uses less digits than its factorization.

51111110006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3918367.

The product of its (nonzero) digits is 30, while the sum is 17.

The spelling of 51111110006 in words is "fifty-one billion, one hundred eleven million, one hundred ten thousand, six".