401162666 has 8 divisors (see below), whose sum is σ = 601940484. Its totient is φ = 200515840.

The previous prime is 401162633. The next prime is 401162677. The reversal of 401162666 is 666261104.

It can be written as a sum of positive squares in 2 ways, for example, as 399160441 + 2002225 = 19979^2 + 1415^2 .

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

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, 24695 + ... + 37578.

Almost surely, 2^401162666 is an apocalyptic number.

401162666 is a deficient number, since it is larger than the sum of its proper divisors (200777818).

401162666 is a wasteful number, since it uses less digits than its factorization.

401162666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65496.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 401162666 is about 20029.0455588877. The cubic root of 401162666 is about 737.5194921976.

The spelling of 401162666 in words is "four hundred one million, one hundred sixty-two thousand, six hundred sixty-six".