51161606264434 has 16 divisors (see below), whose sum is σ = 78324135177816. Its totient is φ = 25057041350400.

The previous prime is 51161606264411. The next prime is 51161606264459. The reversal of 51161606264434 is 43446260616115.

It can be written as a sum of positive squares in 4 ways, for example, as 29871198357025 + 21290407907409 = 5465455^2 + 4614153^2 .

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, 870006757 + ... + 870065560.

Almost surely, 2^{51161606264434} is an apocalyptic number.

51161606264434 is a deficient number, since it is larger than the sum of its proper divisors (27162528913382).

51161606264434 is a wasteful number, since it uses less digits than its factorization.

51161606264434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1740072621.

The product of its (nonzero) digits is 2488320, while the sum is 49.

The spelling of 51161606264434 in words is "fifty-one trillion, one hundred sixty-one billion, six hundred six million, two hundred sixty-four thousand, four hundred thirty-four".