3654871250066 has 8 divisors (see below), whose sum is σ = 5482446233484. Its totient is φ = 1827389172240.

The previous prime is 3654871250053. The next prime is 3654871250077. The reversal of 3654871250066 is 6600521784563.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3511782300625 + 143088949441 = 1873975^2 + 378271^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23127965 + ... + 23285456.

Almost surely, 2^{3654871250066} is an apocalyptic number.

3654871250066 is a deficient number, since it is larger than the sum of its proper divisors (1827574983418).

3654871250066 is a wasteful number, since it uses less digits than its factorization.

3654871250066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46452796.

The product of its (nonzero) digits is 7257600, while the sum is 53.

The spelling of 3654871250066 in words is "three trillion, six hundred fifty-four billion, eight hundred seventy-one million, two hundred fifty thousand, sixty-six".