10665478837 has 6 divisors (see below), whose sum is σ = 11486301302. Its totient is φ = 9844713672.

The previous prime is 10665478723. The next prime is 10665478841. The reversal of 10665478837 is 73887456601.

It can be written as a sum of positive squares in only one way, i.e., 7383793041 + 3281685796 = 85929^2 + 57286^2 .

It is not a de Polignac number, because 10665478837 - 2⁷ = 10665478709 is a prime.

It is a super-2 number, since 2×10665478837² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10665478847) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 358038 + ... + 386680.

Almost surely, 2^10665478837 is an apocalyptic number.

It is an amenable number.

10665478837 is a deficient number, since it is larger than the sum of its proper divisors (820822465).

10665478837 is an frugal number, since it uses more digits than its factorization.

10665478837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57299 (or 28656 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 55.

The spelling of 10665478837 in words is "ten billion, six hundred sixty-five million, four hundred seventy-eight thousand, eight hundred thirty-seven".