51151606004 has 24 divisors (see below), whose sum is σ = 90126739080. Its totient is φ = 25401544704.

The previous prime is 51151605971. The next prime is 51151606031. The reversal of 51151606004 is 40060615115.

It can be written as a sum of positive squares in 4 ways, for example, as 260757904 + 50890848100 = 16148^2 + 225590^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 419192 + ... + 527280.

It is an arithmetic number, because the mean of its divisors is an integer number (3755280795).

Almost surely, 2^51151606004 is an apocalyptic number.

It is an amenable number.

51151606004 is a deficient number, since it is larger than the sum of its proper divisors (38975133076).

51151606004 is a wasteful number, since it uses less digits than its factorization.

51151606004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108899 (or 108897 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

The spelling of 51151606004 in words is "fifty-one billion, one hundred fifty-one million, six hundred six thousand, four".