221625366036 has 96 divisors (see below), whose sum is σ = 542943206400. Its totient is φ = 70278451200.

The previous prime is 221625366013. The next prime is 221625366073. The reversal of 221625366036 is 630663526122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5355906 + ... + 5397126.

It is an arithmetic number, because the mean of its divisors is an integer number (5655658400).

Almost surely, 2^221625366036 is an apocalyptic number.

It is an amenable number.

221625366036 is an abundant number, since it is smaller than the sum of its proper divisors (321317840364).

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

221625366036 is a wasteful number, since it uses less digits than its factorization.

221625366036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41505 (or 41503 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 42.

The spelling of 221625366036 in words is "two hundred twenty-one billion, six hundred twenty-five million, three hundred sixty-six thousand, thirty-six".