6601540116001 has 8 divisors (see below), whose sum is σ = 6769832718600. Its totient is φ = 6433594152960.

The previous prime is 6601540115861. The next prime is 6601540116007. The reversal of 6601540116001 is 1006110451066.

It can be written as a sum of positive squares in 4 ways, for example, as 241989221776 + 6359550894225 = 491924^2 + 2521815^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6601540116001 - 2¹³ = 6601540107809 is a prime.

It is a super-3 number, since 3×6601540116001³ (a number of 39 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6601540116007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86621316 + ... + 86697493.

It is an arithmetic number, because the mean of its divisors is an integer number (846229089825).

Almost surely, 2^{6601540116001} is an apocalyptic number.

It is an amenable number.

6601540116001 is a deficient number, since it is larger than the sum of its proper divisors (168292602599).

6601540116001 is a wasteful number, since it uses less digits than its factorization.

6601540116001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173319779.

The product of its (nonzero) digits is 4320, while the sum is 31.

Adding to 6601540116001 its reverse (1006110451066), we get a palindrome (7607650567067).

The spelling of 6601540116001 in words is "six trillion, six hundred one billion, five hundred forty million, one hundred sixteen thousand, one".