3666431950 has 12 divisors (see below), whose sum is σ = 6819563520. Its totient is φ = 1466572760.

The previous prime is 3666431921. The next prime is 3666431963. The reversal of 3666431950 is 591346663.

It is a junction number, because it is equal to n+sod(n) for n = 3666431897 and 3666431906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36664270 + ... + 36664369.

It is an arithmetic number, because the mean of its divisors is an integer number (568296960).

Almost surely, 2^3666431950 is an apocalyptic number.

3666431950 is a deficient number, since it is larger than the sum of its proper divisors (3153131570).

3666431950 is a wasteful number, since it uses less digits than its factorization.

3666431950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73328651 (or 73328646 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 43.

The square root of 3666431950 is about 60551.0689418445. The cubic root of 3666431950 is about 1541.9887655540.

The spelling of 3666431950 in words is "three billion, six hundred sixty-six million, four hundred thirty-one thousand, nine hundred fifty".