3901666546 has 8 divisors (see below), whose sum is σ = 5860971504. Its totient is φ = 1948009380.

The previous prime is 3901666537. The next prime is 3901666547. The reversal of 3901666546 is 6456661093.

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

It is a junction number, because it is equal to n+sod(n) for n = 3901666496 and 3901666505.

It is not an unprimeable number, because it can be changed into a prime (3901666547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1410220 + ... + 1412983.

It is an arithmetic number, because the mean of its divisors is an integer number (732621438).

Almost surely, 2^3901666546 is an apocalyptic number.

3901666546 is a deficient number, since it is larger than the sum of its proper divisors (1959304958).

3901666546 is a wasteful number, since it uses less digits than its factorization.

3901666546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2823896.

The product of its (nonzero) digits is 699840, while the sum is 46.

The square root of 3901666546 is about 62463.3216055631. The cubic root of 3901666546 is about 1574.2850936706.

The spelling of 3901666546 in words is "three billion, nine hundred one million, six hundred sixty-six thousand, five hundred forty-six".