66532153524 has 12 divisors (see below), whose sum is σ = 155241691584. Its totient is φ = 22177384504.

The previous prime is 66532153511. The next prime is 66532153559. The reversal of 66532153524 is 42535123566.

It is a happy number.

66532153524 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×66532153524² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2772173052 + ... + 2772173075.

It is an arithmetic number, because the mean of its divisors is an integer number (12936807632).

Almost surely, 2^66532153524 is an apocalyptic number.

It is an amenable number.

66532153524 is an abundant number, since it is smaller than the sum of its proper divisors (88709538060).

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

66532153524 is a wasteful number, since it uses less digits than its factorization.

66532153524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5544346134 (or 5544346132 counting only the distinct ones).

The product of its digits is 648000, while the sum is 42.

The spelling of 66532153524 in words is "sixty-six billion, five hundred thirty-two million, one hundred fifty-three thousand, five hundred twenty-four".