605398820550 has 48 divisors (see below), whose sum is σ = 1566666869760. Its totient is φ = 154420567840.

The previous prime is 605398820539. The next prime is 605398820563. The reversal of 605398820550 is 55028893506.

605398820550 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 super-2 number, since 2×605398820550² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 605398820493 and 605398820502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87735510 + ... + 87742409.

It is an arithmetic number, because the mean of its divisors is an integer number (32638893120).

Almost surely, 2^605398820550 is an apocalyptic number.

605398820550 is an abundant number, since it is smaller than the sum of its proper divisors (961268049210).

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

605398820550 is a wasteful number, since it uses less digits than its factorization.

605398820550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175477957 (or 175477952 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 51.

The spelling of 605398820550 in words is "six hundred five billion, three hundred ninety-eight million, eight hundred twenty thousand, five hundred fifty".