5165661051 has 12 divisors (see below), whose sum is σ = 7462338312. Its totient is φ = 3443391936.

The previous prime is 5165661049. The next prime is 5165661071. The reversal of 5165661051 is 1501665615.

It is not a de Polignac number, because 5165661051 - 2¹ = 5165661049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5165660997 and 5165661015.

It is not an unprimeable number, because it can be changed into a prime (5165661001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71395 + ... + 124211.

It is an arithmetic number, because the mean of its divisors is an integer number (621861526).

Almost surely, 2^5165661051 is an apocalyptic number.

5165661051 is a deficient number, since it is larger than the sum of its proper divisors (2296677261).

5165661051 is a wasteful number, since it uses less digits than its factorization.

5165661051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63690 (or 63687 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 5165661051 is about 71872.5333559351. The cubic root of 5165661051 is about 1728.6562288232.

The spelling of 5165661051 in words is "five billion, one hundred sixty-five million, six hundred sixty-one thousand, fifty-one".