51166065255157 has 32 divisors (see below), whose sum is σ = 57119079225600. Its totient is φ = 45548306039808.

The previous prime is 51166065255133. The next prime is 51166065255169. The reversal of 51166065255157 is 75155256066115.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51166065255157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51166065255098 and 51166065255107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51166065252157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 504401319 + ... + 504502747.

It is an arithmetic number, because the mean of its divisors is an integer number (1784971225800).

Almost surely, 2^{51166065255157} is an apocalyptic number.

It is an amenable number.

51166065255157 is a deficient number, since it is larger than the sum of its proper divisors (5953013970443).

51166065255157 is a wasteful number, since it uses less digits than its factorization.

51166065255157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103965.

The product of its (nonzero) digits is 9450000, while the sum is 55.

The spelling of 51166065255157 in words is "fifty-one trillion, one hundred sixty-six billion, sixty-five million, two hundred fifty-five thousand, one hundred fifty-seven".