3663640126 has 16 divisors (see below), whose sum is σ = 5535714096. Its totient is φ = 1818444096.

The previous prime is 3663640111. The next prime is 3663640129. The reversal of 3663640126 is 6210463663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3663640129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169885 + ... + 190231.

It is an arithmetic number, because the mean of its divisors is an integer number (345982131).

Almost surely, 2^3663640126 is an apocalyptic number.

3663640126 is a deficient number, since it is larger than the sum of its proper divisors (1872073970).

3663640126 is a wasteful number, since it uses less digits than its factorization.

3663640126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21003.

The product of its (nonzero) digits is 93312, while the sum is 37.

The square root of 3663640126 is about 60528.0110857775. The cubic root of 3663640126 is about 1541.5972810041.

The spelling of 3663640126 in words is "three billion, six hundred sixty-three million, six hundred forty thousand, one hundred twenty-six".