1422711665 has 8 divisors (see below), whose sum is σ = 1707475560. Its totient is φ = 1138021632.

The previous prime is 1422711649. The next prime is 1422711677. The reversal of 1422711665 is 5661172241.

It can be written as a sum of positive squares in 4 ways, for example, as 55413136 + 1367298529 = 7444^2 + 36977^2 .

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 1422711665 - 2⁴ = 1422711649 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41801 + ... + 67769.

It is an arithmetic number, because the mean of its divisors is an integer number (213434445).

Almost surely, 2^1422711665 is an apocalyptic number.

It is an amenable number.

1422711665 is a deficient number, since it is larger than the sum of its proper divisors (284763895).

1422711665 is a wasteful number, since it uses less digits than its factorization.

1422711665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36931.

The product of its digits is 20160, while the sum is 35.

The square root of 1422711665 is about 37718.8502608444. The cubic root of 1422711665 is about 1124.7058760317.

The spelling of 1422711665 in words is "one billion, four hundred twenty-two million, seven hundred eleven thousand, six hundred sixty-five".