51151155015556 has 24 divisors (see below), whose sum is σ = 90977461545600. Its totient is φ = 25159199116800.

The previous prime is 51151155015509. The next prime is 51151155015589. The reversal of 51151155015556 is 65551055115115.

51151155015556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200440080 + ... + 200695111.

It is an arithmetic number, because the mean of its divisors is an integer number (3790727564400).

Almost surely, 2^{51151155015556} is an apocalyptic number.

It is an amenable number.

51151155015556 is a deficient number, since it is larger than the sum of its proper divisors (39826306530044).

51151155015556 is a wasteful number, since it uses less digits than its factorization.

51151155015556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401135715 (or 401135713 counting only the distinct ones).

The product of its (nonzero) digits is 468750, while the sum is 46.

The spelling of 51151155015556 in words is "fifty-one trillion, one hundred fifty-one billion, one hundred fifty-five million, fifteen thousand, five hundred fifty-six".