6653521542 has 16 divisors (see below), whose sum is σ = 13330354752. Its totient is φ = 2213955240.

The previous prime is 6653521507. The next prime is 6653521561. The reversal of 6653521542 is 2451253566.

It is a self number, because there is not a number n which added to its sum of digits gives 6653521542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 967608 + ... + 974459.

It is an arithmetic number, because the mean of its divisors is an integer number (833147172).

Almost surely, 2^6653521542 is an apocalyptic number.

6653521542 is an abundant number, since it is smaller than the sum of its proper divisors (6676833210).

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

6653521542 is a wasteful number, since it uses less digits than its factorization.

6653521542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1942643.

The product of its digits is 216000, while the sum is 39.

The square root of 6653521542 is about 81569.1212530820. The cubic root of 6653521542 is about 1880.8342402504.

The spelling of 6653521542 in words is "six billion, six hundred fifty-three million, five hundred twenty-one thousand, five hundred forty-two".