3663649506 has 16 divisors (see below), whose sum is σ = 7993417248. Its totient is φ = 1110196800.

The previous prime is 3663649499. The next prime is 3663649513. The reversal of 3663649506 is 6059463663.

It is an interprime number because it is at equal distance from previous prime (3663649499) and next prime (3663649513).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27754855 + ... + 27754986.

It is an arithmetic number, because the mean of its divisors is an integer number (499588578).

Almost surely, 2^3663649506 is an apocalyptic number.

3663649506 is an abundant number, since it is smaller than the sum of its proper divisors (4329767742).

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

3663649506 is a wasteful number, since it uses less digits than its factorization.

3663649506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55509857.

The product of its (nonzero) digits is 2099520, while the sum is 48.

The square root of 3663649506 is about 60528.0885705141. The cubic root of 3663649506 is about 1541.5985966510.

The spelling of 3663649506 in words is "three billion, six hundred sixty-three million, six hundred forty-nine thousand, five hundred six".