5161706694 has 80 divisors (see below), whose sum is σ = 11996424000. Its totient is φ = 1656861696.

The previous prime is 5161706689. The next prime is 5161706749. The reversal of 5161706694 is 4966071615.

5161706694 is a `hidden beast` number, since 516 + 1 + 70 + 6 + 69 + 4 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2108179 + ... + 2110625.

It is an arithmetic number, because the mean of its divisors is an integer number (149955300).

Almost surely, 2^5161706694 is an apocalyptic number.

5161706694 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 5161706694, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5998212000).

5161706694 is an abundant number, since it is smaller than the sum of its proper divisors (6834717306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5161706694 is a wasteful number, since it uses less digits than its factorization.

5161706694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2939 (or 2930 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 5161706694 is about 71845.0185747070. The cubic root of 5161706694 is about 1728.2150159237.

The spelling of 5161706694 in words is "five billion, one hundred sixty-one million, seven hundred six thousand, six hundred ninety-four".