738666548665 has 8 divisors (see below), whose sum is σ = 886410854280. Its totient is φ = 590925908352.

The previous prime is 738666548651. The next prime is 738666548689. The reversal of 738666548665 is 566845666837.

It can be written as a sum of positive squares in 4 ways, for example, as 43265664016 + 695400884649 = 208004^2 + 833907^2 .

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 738666548665 - 2⁷ = 738666548537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 738666548594 and 738666548603.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451524 + ... + 1296613.

It is an arithmetic number, because the mean of its divisors is an integer number (110801356785).

Almost surely, 2^738666548665 is an apocalyptic number.

It is an amenable number.

738666548665 is a deficient number, since it is larger than the sum of its proper divisors (147744305615).

738666548665 is a wasteful number, since it uses less digits than its factorization.

738666548665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832651.

The product of its digits is 1045094400, while the sum is 70.

The spelling of 738666548665 in words is "seven hundred thirty-eight billion, six hundred sixty-six million, five hundred forty-eight thousand, six hundred sixty-five".