6634556191632 has 20 divisors (see below), whose sum is σ = 17139270161840. Its totient is φ = 2211518730528.

The previous prime is 6634556191621. The next prime is 6634556191729. The reversal of 6634556191632 is 2361916554366.

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, 69109960282 + ... + 69109960377.

It is an arithmetic number, because the mean of its divisors is an integer number (856963508092).

Almost surely, 2^{6634556191632} is an apocalyptic number.

It is an amenable number.

6634556191632 is an abundant number, since it is smaller than the sum of its proper divisors (10504713970208).

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

6634556191632 is a wasteful number, since it uses less digits than its factorization.

6634556191632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138219920670 (or 138219920664 counting only the distinct ones).

The product of its digits is 20995200, while the sum is 57.

The spelling of 6634556191632 in words is "six trillion, six hundred thirty-four billion, five hundred fifty-six million, one hundred ninety-one thousand, six hundred thirty-two".