43221565602356 has 48 divisors (see below), whose sum is σ = 75886804723968. Its totient is φ = 21539743948800.

The previous prime is 43221565602349. The next prime is 43221565602377. The reversal of 43221565602356 is 65320656512234.

It is a happy number.

It is a super-2 number, since 2×43221565602356² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9645515636 + ... + 9645520116.

It is an arithmetic number, because the mean of its divisors is an integer number (1580975098416).

Almost surely, 2^{43221565602356} is an apocalyptic number.

It is an amenable number.

43221565602356 is a deficient number, since it is larger than the sum of its proper divisors (32665239121612).

43221565602356 is a wasteful number, since it uses less digits than its factorization.

43221565602356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9672 (or 9670 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 50.

The spelling of 43221565602356 in words is "forty-three trillion, two hundred twenty-one billion, five hundred sixty-five million, six hundred two thousand, three hundred fifty-six".