354456666 has 96 divisors (see below), whose sum is σ = 848640000. Its totient is φ = 106492320.

The previous prime is 354456649. The next prime is 354456689. The reversal of 354456666 is 666654453.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 710085 + ... + 710583.

It is an arithmetic number, because the mean of its divisors is an integer number (8840000).

Almost surely, 2^354456666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 354456666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (424320000).

354456666 is an abundant number, since it is smaller than the sum of its proper divisors (494183334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

354456666 is a wasteful number, since it uses less digits than its factorization.

354456666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624 (or 621 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 45.

The square root of 354456666 is about 18827.0195729436. The cubic root of 354456666 is about 707.7084526884.

The spelling of 354456666 in words is "three hundred fifty-four million, four hundred fifty-six thousand, six hundred sixty-six".