346661666 has 16 divisors (see below), whose sum is σ = 560952000. Its totient is φ = 159723408.

The previous prime is 346661647. The next prime is 346661677. The reversal of 346661666 is 666166643.

It is a Curzon number.

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, 4445 + ... + 26703.

It is an arithmetic number, because the mean of its divisors is an integer number (35059500).

Almost surely, 2^346661666 is an apocalyptic number.

346661666 is a deficient number, since it is larger than the sum of its proper divisors (214290334).

346661666 is a wasteful number, since it uses less digits than its factorization.

346661666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22873.

The product of its digits is 559872, while the sum is 44.

The square root of 346661666 is about 18618.8524350992. The cubic root of 346661666 is about 702.4821175524.

The spelling of 346661666 in words is "three hundred forty-six million, six hundred sixty-one thousand, six hundred sixty-six".