51116506102 has 4 divisors (see below), whose sum is σ = 76674759156. Its totient is φ = 25558253050.

The previous prime is 51116506079. The next prime is 51116506159. The reversal of 51116506102 is 20160561115.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×51116506102² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12779126524 + ... + 12779126527.

It is an arithmetic number, because the mean of its divisors is an integer number (19168689789).

Almost surely, 2^51116506102 is an apocalyptic number.

51116506102 is a deficient number, since it is larger than the sum of its proper divisors (25558253054).

51116506102 is a wasteful number, since it uses less digits than its factorization.

51116506102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25558253053.

The product of its (nonzero) digits is 1800, while the sum is 28.

The spelling of 51116506102 in words is "fifty-one billion, one hundred sixteen million, five hundred six thousand, one hundred two".