43000221164 has 24 divisors (see below), whose sum is σ = 76065127488. Its totient is φ = 21267718400.

The previous prime is 43000221137. The next prime is 43000221191. The reversal of 43000221164 is 46112200034.

It is an interprime number because it is at equal distance from previous prime (43000221137) and next prime (43000221191).

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, 397364 + ... + 493860.

It is an arithmetic number, because the mean of its divisors is an integer number (3169380312).

Almost surely, 2^43000221164 is an apocalyptic number.

It is an amenable number.

43000221164 is a deficient number, since it is larger than the sum of its proper divisors (33064906324).

43000221164 is a wasteful number, since it uses less digits than its factorization.

43000221164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97705 (or 97703 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 43000221164 its reverse (46112200034), we get a palindrome (89112421198).

The spelling of 43000221164 in words is "forty-three billion, two hundred twenty-one thousand, one hundred sixty-four".