42230521664 has 14 divisors (see below), whose sum is σ = 83801191554. Its totient is φ = 21115260800.

The previous prime is 42230521633. The next prime is 42230521673. The reversal of 42230521664 is 46612503224.

It can be written as a sum of positive squares in only one way, i.e., 37639104064 + 4591417600 = 194008^2 + 67760^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 329925887 + ... + 329926014.

Almost surely, 2^42230521664 is an apocalyptic number.

It is an amenable number.

42230521664 is a deficient number, since it is larger than the sum of its proper divisors (41570669890).

42230521664 is an equidigital number, since it uses as much as digits as its factorization.

42230521664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659851913 (or 659851903 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 42230521664 in words is "forty-two billion, two hundred thirty million, five hundred twenty-one thousand, six hundred sixty-four".