603668978640 has 1120 divisors, whose sum is σ = 2742707955456. Its totient is φ = 119857397760.

The previous prime is 603668978609. The next prime is 603668978669. The reversal of 603668978640 is 46879866306.

603668978640 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 90217695 + ... + 90224385.

Almost surely, 2^603668978640 is an apocalyptic number.

603668978640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 603668978640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1371353977728).

603668978640 is an abundant number, since it is smaller than the sum of its proper divisors (2139038976816).

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

603668978640 is a wasteful number, since it uses less digits than its factorization.

603668978640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6759 (or 6738 counting only the distinct ones).

The product of its (nonzero) digits is 62705664, while the sum is 63.

The spelling of 603668978640 in words is "six hundred three billion, six hundred sixty-eight million, nine hundred seventy-eight thousand, six hundred forty".