6609901536 has 96 divisors (see below), whose sum is σ = 22033025280. Its totient is φ = 1888541568.

The previous prime is 6609901517. The next prime is 6609901537. The reversal of 6609901536 is 6351099066.

6609901536 is a `hidden beast` number, since 6 + 609 + 9 + 0 + 1 + 5 + 36 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 6609901491 and 6609901500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6609901537) 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, 540406 + ... + 552501.

It is an arithmetic number, because the mean of its divisors is an integer number (229510680).

Almost surely, 2^6609901536 is an apocalyptic number.

It is an amenable number.

6609901536 is an abundant number, since it is smaller than the sum of its proper divisors (15423123744).

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

6609901536 is a wasteful number, since it uses less digits than its factorization.

6609901536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092933 (or 1092919 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 45.

The square root of 6609901536 is about 81301.3009490008. The cubic root of 6609901536 is about 1876.7150209101.

The spelling of 6609901536 in words is "six billion, six hundred nine million, nine hundred one thousand, five hundred thirty-six".