2998001666 has 16 divisors (see below), whose sum is σ = 4964930208. Its totient is φ = 1346308800.

The previous prime is 2998001653. The next prime is 2998001687. The reversal of 2998001666 is 6661008992.

It is a self number, because there is not a number n which added to its sum of digits gives 2998001666.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 819095 + ... + 822746.

It is an arithmetic number, because the mean of its divisors is an integer number (310308138).

Almost surely, 2^2998001666 is an apocalyptic number.

2998001666 is a deficient number, since it is larger than the sum of its proper divisors (1966928542).

2998001666 is a wasteful number, since it uses less digits than its factorization.

2998001666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641937.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 2998001666 is about 54754.0105015149. The cubic root of 2998001666 is about 1441.9292662494.

The spelling of 2998001666 in words is "two billion, nine hundred ninety-eight million, one thousand, six hundred sixty-six".