51165416449 has 8 divisors (see below), whose sum is σ = 58476254400. Its totient is φ = 43854951696.

The previous prime is 51165416347. The next prime is 51165416453. The reversal of 51165416449 is 94461456115.

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

It is a cyclic number.

It is not a de Polignac number, because 51165416449 - 2⁷ = 51165416321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51165416399 and 51165416408.

It is not an unprimeable number, because it can be changed into a prime (51165416849) 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, 326322 + ... + 456964.

It is an arithmetic number, because the mean of its divisors is an integer number (7309531800).

Almost surely, 2^51165416449 is an apocalyptic number.

It is an amenable number.

51165416449 is a deficient number, since it is larger than the sum of its proper divisors (7310837951).

51165416449 is a wasteful number, since it uses less digits than its factorization.

51165416449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186599.

The product of its digits is 518400, while the sum is 46.

The spelling of 51165416449 in words is "fifty-one billion, one hundred sixty-five million, four hundred sixteen thousand, four hundred forty-nine".