51166435461 has 8 divisors (see below), whose sum is σ = 69673444224. Its totient is φ = 33385191840.

The previous prime is 51166435387. The next prime is 51166435469. The reversal of 51166435461 is 16453466115.

51166435461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51166435461 - 2¹⁴ = 51166419077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51166435469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181441120 + ... + 181441401.

It is an arithmetic number, because the mean of its divisors is an integer number (8709180528).

Almost surely, 2^51166435461 is an apocalyptic number.

It is an amenable number.

51166435461 is a deficient number, since it is larger than the sum of its proper divisors (18507008763).

51166435461 is a wasteful number, since it uses less digits than its factorization.

51166435461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362882571.

The product of its digits is 259200, while the sum is 42.

The spelling of 51166435461 in words is "fifty-one billion, one hundred sixty-six million, four hundred thirty-five thousand, four hundred sixty-one".