6501881899006 has 128 divisors (see below), whose sum is σ = 11927388049920. Its totient is φ = 2625447002112.

The previous prime is 6501881898997. The next prime is 6501881899067. The reversal of 6501881899006 is 6009981881056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 144582681 + ... + 144627643.

It is an arithmetic number, because the mean of its divisors is an integer number (93182719140).

Almost surely, 2^{6501881899006} is an apocalyptic number.

6501881899006 is a deficient number, since it is larger than the sum of its proper divisors (5425506150914).

6501881899006 is a wasteful number, since it uses less digits than its factorization.

6501881899006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45338.

The product of its (nonzero) digits is 7464960, while the sum is 61.

The spelling of 6501881899006 in words is "six trillion, five hundred one billion, eight hundred eighty-one million, eight hundred ninety-nine thousand, six".