1664010031 has 16 divisors (see below), whose sum is σ = 1792756800. Its totient is φ = 1538844160.

The previous prime is 1664009999. The next prime is 1664010041. The reversal of 1664010031 is 1300104661.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1664010031 - 2⁵ = 1664009999 is a prime.

It is a super-2 number, since 2×1664010031² = 5537858766537241922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1664009984 and 1664010011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1664010041) 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, 380445 + ... + 384793.

It is an arithmetic number, because the mean of its divisors is an integer number (112047300).

Almost surely, 2^1664010031 is an apocalyptic number.

1664010031 is a deficient number, since it is larger than the sum of its proper divisors (128746769).

1664010031 is a wasteful number, since it uses less digits than its factorization.

1664010031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4754.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1664010031 is about 40792.2790611165. The cubic root of 1664010031 is about 1185.0008085119. Note that the first 3 decimals are identical.

Adding to 1664010031 its reverse (1300104661), we get a palindrome (2964114692).

The spelling of 1664010031 in words is "one billion, six hundred sixty-four million, ten thousand, thirty-one".