6662155 has 4 divisors (see below), whose sum is σ = 7994592. Its totient is φ = 5329720.

The previous prime is 6662137. The next prime is 6662171. The reversal of 6662155 is 5512666.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6662155 - 2⁹ = 6661643 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 666211 + ... + 666220.

It is an arithmetic number, because the mean of its divisors is an integer number (1998648).

Almost surely, 2^6662155 is an apocalyptic number.

6662155 is a deficient number, since it is larger than the sum of its proper divisors (1332437).

6662155 is a wasteful number, since it uses less digits than its factorization.

6662155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332436.

The product of its digits is 10800, while the sum is 31.

The square root of 6662155 is about 2581.1150691126. The cubic root of 6662155 is about 188.1647397863.

The spelling of 6662155 in words is "six million, six hundred sixty-two thousand, one hundred fifty-five".