1038746665 has 16 divisors (see below), whose sum is σ = 1439804160. Its totient is φ = 711013120.

The previous prime is 1038746659. The next prime is 1038746669. The reversal of 1038746665 is 5666478301.

It is not a de Polignac number, because 1038746665 - 2⁵ = 1038746633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1038746669) 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, 554545 + ... + 556414.

It is an arithmetic number, because the mean of its divisors is an integer number (89987760).

Almost surely, 2^1038746665 is an apocalyptic number.

It is an amenable number.

1038746665 is a deficient number, since it is larger than the sum of its proper divisors (401057495).

1038746665 is a wasteful number, since it uses less digits than its factorization.

1038746665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110992.

The product of its (nonzero) digits is 725760, while the sum is 46.

The square root of 1038746665 is about 32229.5930008432. The cubic root of 1038746665 is about 1012.7522440170.

The spelling of 1038746665 in words is "one billion, thirty-eight million, seven hundred forty-six thousand, six hundred sixty-five".