6496665426 has 40 divisors (see below), whose sum is σ = 14563044540. Its totient is φ = 2164707072.

The previous prime is 6496665419. The next prime is 6496665431. The reversal of 6496665426 is 6245666946.

It can be written as a sum of positive squares in 2 ways, for example, as 6481055025 + 15610401 = 80505^2 + 3951^2 .

It is a super-2 number, since 2×6496665426² = 84413323314767522952, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 513610 + ... + 526106.

Almost surely, 2^6496665426 is an apocalyptic number.

6496665426 is an abundant number, since it is smaller than the sum of its proper divisors (8066379114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6496665426 is a wasteful number, since it uses less digits than its factorization.

6496665426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15720 (or 15711 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 54.

The square root of 6496665426 is about 80601.8946799639. The cubic root of 6496665426 is about 1865.9363870334.

The spelling of 6496665426 in words is "six billion, four hundred ninety-six million, six hundred sixty-five thousand, four hundred twenty-six".