3646731660 has 96 divisors (see below), whose sum is σ = 11995990272. Its totient is φ = 816049920.

The previous prime is 3646731631. The next prime is 3646731661. The reversal of 3646731660 is 661376463.

It is not an unprimeable number, because it can be changed into a prime (3646731661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 203934 + ... + 221093.

It is an arithmetic number, because the mean of its divisors is an integer number (124958232).

Almost surely, 2^3646731660 is an apocalyptic number.

3646731660 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3646731660 is an abundant number, since it is smaller than the sum of its proper divisors (8349258612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3646731660 is a wasteful number, since it uses less digits than its factorization.

3646731660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425063 (or 425061 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 42.

The square root of 3646731660 is about 60388.1748358071. The cubic root of 3646731660 is about 1539.2220251081. Note that the first 3 decimals are identical.

The spelling of 3646731660 in words is "three billion, six hundred forty-six million, seven hundred thirty-one thousand, six hundred sixty".