6653521545 has 16 divisors (see below), whose sum is σ = 11613419712. Its totient is φ = 3225949760.

The previous prime is 6653521507. The next prime is 6653521561. The reversal of 6653521545 is 5451253566.

It is not a de Polignac number, because 6653521545 - 2¹¹ = 6653519497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6653521497 and 6653521506.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20162022 + ... + 20162351.

It is an arithmetic number, because the mean of its divisors is an integer number (725838732).

Almost surely, 2^6653521545 is an apocalyptic number.

It is an amenable number.

6653521545 is a deficient number, since it is larger than the sum of its proper divisors (4959898167).

6653521545 is a wasteful number, since it uses less digits than its factorization.

6653521545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40324392.

The product of its digits is 540000, while the sum is 42.

The square root of 6653521545 is about 81569.1212714714. The cubic root of 6653521545 is about 1880.8342405331.

The spelling of 6653521545 in words is "six billion, six hundred fifty-three million, five hundred twenty-one thousand, five hundred forty-five".