1664550153 has 24 divisors (see below), whose sum is σ = 2755354368. Its totient is φ = 948566592.

The previous prime is 1664550133. The next prime is 1664550169. The reversal of 1664550153 is 3510554661.

1664550153 is a `hidden beast` number, since 1 + 6 + 645 + 5 + 0 + 1 + 5 + 3 = 666.

It is not a de Polignac number, because 1664550153 - 2⁸ = 1664549897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1664550113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12876 + ... + 59117.

It is an arithmetic number, because the mean of its divisors is an integer number (114806432).

Almost surely, 2^1664550153 is an apocalyptic number.

It is an amenable number.

1664550153 is a deficient number, since it is larger than the sum of its proper divisors (1090804215).

1664550153 is a wasteful number, since it uses less digits than its factorization.

1664550153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72373 (or 72370 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 1664550153 is about 40798.8989189659. The cubic root of 1664550153 is about 1185.1290080131.

The spelling of 1664550153 in words is "one billion, six hundred sixty-four million, five hundred fifty thousand, one hundred fifty-three".