1664060212 has 12 divisors (see below), whose sum is σ = 3038718816. Its totient is φ = 795854840.

The previous prime is 1664060197. The next prime is 1664060213. The reversal of 1664060212 is 2120604661.

It is a super-2 number, since 2×1664060212² = 5538192778322969888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1664060213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9043714 + ... + 9043897.

It is an arithmetic number, because the mean of its divisors is an integer number (253226568).

Almost surely, 2^1664060212 is an apocalyptic number.

It is an amenable number.

1664060212 is a deficient number, since it is larger than the sum of its proper divisors (1374658604).

1664060212 is a wasteful number, since it uses less digits than its factorization.

1664060212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18087638 (or 18087636 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1664060212 is about 40792.8941361115. The cubic root of 1664060212 is about 1185.0127202846.

Adding to 1664060212 its reverse (2120604661), we get a palindrome (3784664873).

The spelling of 1664060212 in words is "one billion, six hundred sixty-four million, sixty thousand, two hundred twelve".