51201335108 has 24 divisors (see below), whose sum is σ = 111712004544. Its totient is φ = 19948572000.

The previous prime is 51201335093. The next prime is 51201335111. The reversal of 51201335108 is 80153310215.

It is a happy 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, 83118743 + ... + 83119358.

It is an arithmetic number, because the mean of its divisors is an integer number (4654666856).

Almost surely, 2^51201335108 is an apocalyptic number.

It is an amenable number.

51201335108 is an abundant number, since it is smaller than the sum of its proper divisors (60510669436).

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

51201335108 is a wasteful number, since it uses less digits than its factorization.

51201335108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166238123 (or 166238121 counting only the distinct ones).

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

The spelling of 51201335108 in words is "fifty-one billion, two hundred one million, three hundred thirty-five thousand, one hundred eight".