6535572480 has 616 divisors, whose sum is σ = 25130151072. Its totient is φ = 1624375296.

The previous prime is 6535572469. The next prime is 6535572499. The reversal of 6535572480 is 842755356.

6535572480 is a `hidden beast` number, since 6 + 5 + 35 + 572 + 48 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 63452109 + ... + 63452211.

Almost surely, 2^6535572480 is an apocalyptic number.

6535572480 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 6535572480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12565075536).

6535572480 is an abundant number, since it is smaller than the sum of its proper divisors (18594578592).

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

6535572480 is a wasteful number, since it uses less digits than its factorization.

6535572480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 45.

The square root of 6535572480 is about 80842.8876277932. The cubic root of 6535572480 is about 1869.6538656060.

The spelling of 6535572480 in words is "six billion, five hundred thirty-five million, five hundred seventy-two thousand, four hundred eighty".