6553436620 has 12 divisors (see below), whose sum is σ = 13762216944. Its totient is φ = 2621374640.

The previous prime is 6553436581. The next prime is 6553436627. The reversal of 6553436620 is 266343556.

It is not an unprimeable number, because it can be changed into a prime (6553436627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163835896 + ... + 163835935.

It is an arithmetic number, because the mean of its divisors is an integer number (1146851412).

Almost surely, 2^6553436620 is an apocalyptic number.

It is an amenable number.

6553436620 is an abundant number, since it is smaller than the sum of its proper divisors (7208780324).

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

6553436620 is a wasteful number, since it uses less digits than its factorization.

6553436620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327671840 (or 327671838 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 40.

The square root of 6553436620 is about 80953.2990062789. The cubic root of 6553436620 is about 1871.3558013499.

The spelling of 6553436620 in words is "six billion, five hundred fifty-three million, four hundred thirty-six thousand, six hundred twenty".