5265695661 has 16 divisors (see below), whose sum is σ = 7142929920. Its totient is φ = 3449512880.

The previous prime is 5265695627. The next prime is 5265695683. The reversal of 5265695661 is 1665965625.

It is not a de Polignac number, because 5265695661 - 2¹⁵ = 5265662893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5265695261) 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, 560146 + ... + 569468.

It is an arithmetic number, because the mean of its divisors is an integer number (446433120).

Almost surely, 2^5265695661 is an apocalyptic number.

It is an amenable number.

5265695661 is a deficient number, since it is larger than the sum of its proper divisors (1877234259).

5265695661 is a wasteful number, since it uses less digits than its factorization.

5265695661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12576.

The product of its digits is 2916000, while the sum is 51.

The square root of 5265695661 is about 72565.1132501011. The cubic root of 5265695661 is about 1739.7436162739.

The spelling of 5265695661 in words is "five billion, two hundred sixty-five million, six hundred ninety-five thousand, six hundred sixty-one".