4780616165 has 32 divisors (see below), whose sum is σ = 6305566176. Its totient is φ = 3457658880.

The previous prime is 4780616161. The next prime is 4780616179. The reversal of 4780616165 is 5616160874.

It is a Cunningham number, because it is equal to 69142²+1.

It can be written as a sum of positive squares in 16 ways, for example, as 2734139521 + 2046476644 = 52289^2 + 45238^2 .

It is not a de Polignac number, because 4780616165 - 2² = 4780616161 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4780616161) 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, 3227225 + ... + 3228705.

It is an arithmetic number, because the mean of its divisors is an integer number (197048943).

Almost surely, 2^4780616165 is an apocalyptic number.

It is an amenable number.

4780616165 is a deficient number, since it is larger than the sum of its proper divisors (1524950011).

4780616165 is a wasteful number, since it uses less digits than its factorization.

4780616165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2489.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 4780616165 is about 69142.0000072315. Note that the first 5 decimals coincide. The cubic root of 4780616165 is about 1684.5915783183.

The spelling of 4780616165 in words is "four billion, seven hundred eighty million, six hundred sixteen thousand, one hundred sixty-five".