3645660002 has 4 divisors (see below), whose sum is σ = 5468490006. Its totient is φ = 1822830000.

The previous prime is 3645659989. The next prime is 3645660019. The reversal of 3645660002 is 2000665463.

3645660002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3607083481 + 38576521 = 60059^2 + 6211^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 911414999 + ... + 911415002.

Almost surely, 2^3645660002 is an apocalyptic number.

3645660002 is a deficient number, since it is larger than the sum of its proper divisors (1822830004).

3645660002 is a wasteful number, since it uses less digits than its factorization.

3645660002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1822830003.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 3645660002 is about 60379.3011055941. The cubic root of 3645660002 is about 1539.0712342669.

The spelling of 3645660002 in words is "three billion, six hundred forty-five million, six hundred sixty thousand, two".