51110156100 has 72 divisors (see below), whose sum is σ = 154308248640. Its totient is φ = 13036791680.

The previous prime is 51110156099. The next prime is 51110156101. The reversal of 51110156100 is 165101115.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (51110156099) and next prime (51110156101).

It is a super-2 number, since 2×51110156100² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51110156101) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 3696735 + ... + 3710534.

It is an arithmetic number, because the mean of its divisors is an integer number (2143170120).

Almost surely, 2^51110156100 is an apocalyptic number.

51110156100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51110156100 is an abundant number, since it is smaller than the sum of its proper divisors (103198092540).

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

51110156100 is a wasteful number, since it uses less digits than its factorization.

51110156100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7407309 (or 7407302 counting only the distinct ones).

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

Adding to 51110156100 its reverse (165101115), we get a palindrome (51275257215).

It can be divided in two parts, 5111015 and 6100, that added together give a palindrome (5117115).

The spelling of 51110156100 in words is "fifty-one billion, one hundred ten million, one hundred fifty-six thousand, one hundred".