5120665637 has 8 divisors (see below), whose sum is σ = 5208796800. Its totient is φ = 5032579264.

The previous prime is 5120665609. The next prime is 5120665717. The reversal of 5120665637 is 7365660215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5120665637 - 2⁶ = 5120665573 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5120665594 and 5120665603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5120625637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286868 + ... + 304194.

It is an arithmetic number, because the mean of its divisors is an integer number (651099600).

Almost surely, 2^5120665637 is an apocalyptic number.

It is an amenable number.

5120665637 is a deficient number, since it is larger than the sum of its proper divisors (88131163).

5120665637 is a wasteful number, since it uses less digits than its factorization.

5120665637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22395.

The product of its (nonzero) digits is 226800, while the sum is 41.

The square root of 5120665637 is about 71558.8264087667. The cubic root of 5120665637 is about 1723.6224400100.

The spelling of 5120665637 in words is "five billion, one hundred twenty million, six hundred sixty-five thousand, six hundred thirty-seven".