4995398666 has 32 divisors (see below), whose sum is σ = 7963591680. Its totient is φ = 2347124976.

The previous prime is 4995398657. The next prime is 4995398671. The reversal of 4995398666 is 6668935994.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228005 + ... + 248951.

It is an arithmetic number, because the mean of its divisors is an integer number (248862240).

Almost surely, 2^4995398666 is an apocalyptic number.

4995398666 is a deficient number, since it is larger than the sum of its proper divisors (2968193014).

4995398666 is a wasteful number, since it uses less digits than its factorization.

4995398666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21098.

The product of its digits is 75582720, while the sum is 65.

The square root of 4995398666 is about 70678.1342849399. The cubic root of 4995398666 is about 1709.4512409898.

The spelling of 4995398666 in words is "four billion, nine hundred ninety-five million, three hundred ninety-eight thousand, six hundred sixty-six".