495578603520 has 2688 divisors, whose sum is σ = 2473146224640. Its totient is φ = 88332042240.

The previous prime is 495578603519. The next prime is 495578603573. The reversal of 495578603520 is 25306875594.

495578603520 is a `hidden beast` number, since 4 + 9 + 5 + 5 + 7 + 8 + 603 + 5 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (2688).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 6273146841 + ... + 6273146919.

It is an arithmetic number, because the mean of its divisors is an integer number (920069280).

Almost surely, 2^495578603520 is an apocalyptic number.

495578603520 is a gapful number since it is divisible by the number (40) 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 495578603520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1236573112320).

495578603520 is an abundant number, since it is smaller than the sum of its proper divisors (1977567621120).

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

495578603520 is a wasteful number, since it uses less digits than its factorization.

495578603520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 9072000, while the sum is 54.

The spelling of 495578603520 in words is "four hundred ninety-five billion, five hundred seventy-eight million, six hundred three thousand, five hundred twenty".