603445221664 has 24 divisors (see below), whose sum is σ = 1239686380800. Its totient is φ = 288604236096.

The previous prime is 603445221661. The next prime is 603445221677. The reversal of 603445221664 is 466122544306.

It is a super-2 number, since 2×603445221664² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 603445221664.

It is not an unprimeable number, because it can be changed into a prime (603445221661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 409948464 + ... + 409949935.

It is an arithmetic number, because the mean of its divisors is an integer number (51653599200).

Almost surely, 2^603445221664 is an apocalyptic number.

It is an amenable number.

603445221664 is an abundant number, since it is smaller than the sum of its proper divisors (636241159136).

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

603445221664 is a wasteful number, since it uses less digits than its factorization.

603445221664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819898432 (or 819898424 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 43.

The spelling of 603445221664 in words is "six hundred three billion, four hundred forty-five million, two hundred twenty-one thousand, six hundred sixty-four".