605542063920 has 80 divisors (see below), whose sum is σ = 1877257347840. Its totient is φ = 161471264512.

The previous prime is 605542063913. The next prime is 605542063921. The reversal of 605542063920 is 29360245506.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (605542063921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9428557 + ... + 9492563.

It is an arithmetic number, because the mean of its divisors is an integer number (23465716848).

Almost surely, 2^605542063920 is an apocalyptic number.

605542063920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

605542063920 is an abundant number, since it is smaller than the sum of its proper divisors (1271715283920).

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

605542063920 is a wasteful number, since it uses less digits than its factorization.

605542063920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103442 (or 103436 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 42.

The spelling of 605542063920 in words is "six hundred five billion, five hundred forty-two million, sixty-three thousand, nine hundred twenty".