3645546646 has 8 divisors (see below), whose sum is σ = 6249508560. Its totient is φ = 1562377128.

The previous prime is 3645546637. The next prime is 3645546673. The reversal of 3645546646 is 6466455463.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 3645546646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130198081 + ... + 130198108.

It is an arithmetic number, because the mean of its divisors is an integer number (781188570).

Almost surely, 2^3645546646 is an apocalyptic number.

3645546646 is a deficient number, since it is larger than the sum of its proper divisors (2603961914).

3645546646 is a wasteful number, since it uses less digits than its factorization.

3645546646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260396198.

The product of its digits is 6220800, while the sum is 49.

The square root of 3645546646 is about 60378.3623991244. The cubic root of 3645546646 is about 1539.0552824441.

The spelling of 3645546646 in words is "three billion, six hundred forty-five million, five hundred forty-six thousand, six hundred forty-six".