6663154 has 4 divisors (see below), whose sum is σ = 9994734. Its totient is φ = 3331576.

The previous prime is 6663121. The next prime is 6663179. The reversal of 6663154 is 4513666.

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

It can be written as a sum of positive squares in only one way, i.e., 6275025 + 388129 = 2505^2 + 623^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1665787 + ... + 1665790.

Almost surely, 2^6663154 is an apocalyptic number.

6663154 is a deficient number, since it is larger than the sum of its proper divisors (3331580).

6663154 is a wasteful number, since it uses less digits than its factorization.

6663154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3331579.

The product of its digits is 12960, while the sum is 31.

The square root of 6663154 is about 2581.3085828703. The cubic root of 6663154 is about 188.1741445100.

The spelling of 6663154 in words is "six million, six hundred sixty-three thousand, one hundred fifty-four".