911665442 has 8 divisors (see below), whose sum is σ = 1367696556. Its totient is φ = 455766592.

The previous prime is 911665399. The next prime is 911665483. The reversal of 911665442 is 244566119.

911665442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 852698401 + 58967041 = 29201^2 + 7679^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×911665442² = 1662267756274110728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 911665396 and 911665405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13523 + ... + 44790.

Almost surely, 2^911665442 is an apocalyptic number.

911665442 is a deficient number, since it is larger than the sum of its proper divisors (456031114).

911665442 is a wasteful number, since it uses less digits than its factorization.

911665442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66132.

The product of its digits is 51840, while the sum is 38.

The square root of 911665442 is about 30193.7980717895. The cubic root of 911665442 is about 969.6429202548.

The spelling of 911665442 in words is "nine hundred eleven million, six hundred sixty-five thousand, four hundred forty-two".