43621231651606 has 16 divisors (see below), whose sum is σ = 74781220617216. Its totient is φ = 18694321975656.

The previous prime is 43621231651597. The next prime is 43621231651687. The reversal of 43621231651606 is 60615613212634.

It is a congruent 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, 40414096 + ... + 41479411.

It is an arithmetic number, because the mean of its divisors is an integer number (4673826288576).

Almost surely, 2^{43621231651606} is an apocalyptic number.

43621231651606 is a deficient number, since it is larger than the sum of its proper divisors (31159988965610).

43621231651606 is a wasteful number, since it uses less digits than its factorization.

43621231651606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81931563.

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 43621231651606 in words is "forty-three trillion, six hundred twenty-one billion, two hundred thirty-one million, six hundred fifty-one thousand, six hundred six".