5155122661 has 16 divisors (see below), whose sum is σ = 5609318400. Its totient is φ = 4709422080.

The previous prime is 5155122647. The next prime is 5155122673. The reversal of 5155122661 is 1662215515.

It is a cyclic number.

It is not a de Polignac number, because 5155122661 - 2³¹ = 3007639013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5155122601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 488901 + ... + 499333.

It is an arithmetic number, because the mean of its divisors is an integer number (350582400).

Almost surely, 2^5155122661 is an apocalyptic number.

It is an amenable number.

5155122661 is a deficient number, since it is larger than the sum of its proper divisors (454195739).

5155122661 is a wasteful number, since it uses less digits than its factorization.

5155122661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10836.

The product of its digits is 18000, while the sum is 34.

The square root of 5155122661 is about 71799.1828713949. The cubic root of 5155122661 is about 1727.4798930392.

The spelling of 5155122661 in words is "five billion, one hundred fifty-five million, one hundred twenty-two thousand, six hundred sixty-one".