1665051424 has 12 divisors (see below), whose sum is σ = 3278070054. Its totient is φ = 832525696.

The previous prime is 1665051419. The next prime is 1665051431. The reversal of 1665051424 is 4241505661.

It can be written as a sum of positive squares in only one way, i.e., 1157360400 + 507691024 = 34020^2 + 22532^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1665051424.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26016397 + ... + 26016460.

Almost surely, 2^1665051424 is an apocalyptic number.

It is an amenable number.

1665051424 is a deficient number, since it is larger than the sum of its proper divisors (1613018630).

1665051424 is an equidigital number, since it uses as much as digits as its factorization.

1665051424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52032867 (or 52032859 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 1665051424 is about 40805.0416492864. The cubic root of 1665051424 is about 1185.2479613087.

The spelling of 1665051424 in words is "one billion, six hundred sixty-five million, fifty-one thousand, four hundred twenty-four".