1664150163 has 16 divisors (see below), whose sum is σ = 2391750816. Its totient is φ = 1023148800.

The previous prime is 1664150161. The next prime is 1664150167. The reversal of 1664150163 is 3610514661.

It is not a de Polignac number, because 1664150163 - 2¹ = 1664150161 is a prime.

It is a super-4 number, since 4×1664150163⁴ (a number of 38 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (1664150161) 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, 24463 + ... + 62663.

It is an arithmetic number, because the mean of its divisors is an integer number (149484426).

Almost surely, 2^1664150163 is an apocalyptic number.

1664150163 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1664150163 is a deficient number, since it is larger than the sum of its proper divisors (727600653).

1664150163 is a wasteful number, since it uses less digits than its factorization.

1664150163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39334.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 1664150163 is about 40793.9966539196. The cubic root of 1664150163 is about 1185.0340719075.

The spelling of 1664150163 in words is "one billion, six hundred sixty-four million, one hundred fifty thousand, one hundred sixty-three".