5155162661 has 12 divisors (see below), whose sum is σ = 5878965120. Its totient is φ = 4482745080.

The previous prime is 5155162657. The next prime is 5155162673. The reversal of 5155162661 is 1662615515.

It is a happy number.

It is not a de Polignac number, because 5155162661 - 2² = 5155162657 is a prime.

It is a super-2 number, since 2×5155162661² = 53151404122737201842, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5155162601) 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, 437141 + ... + 448778.

It is an arithmetic number, because the mean of its divisors is an integer number (489913760).

Almost surely, 2^5155162661 is an apocalyptic number.

It is an amenable number.

5155162661 is a deficient number, since it is larger than the sum of its proper divisors (723802459).

5155162661 is a wasteful number, since it uses less digits than its factorization.

5155162661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885976 (or 885953 counting only the distinct ones).

The product of its digits is 54000, while the sum is 38.

The square root of 5155162661 is about 71799.4614255567. The cubic root of 5155162661 is about 1727.4843610232.

The spelling of 5155162661 in words is "five billion, one hundred fifty-five million, one hundred sixty-two thousand, six hundred sixty-one".