6601151615565 has 32 divisors (see below), whose sum is σ = 11400201711360. Its totient is φ = 3242394948096.

The previous prime is 6601151615561. The next prime is 6601151615683. The reversal of 6601151615565 is 5655161511066.

It is not a de Polignac number, because 6601151615565 - 2² = 6601151615561 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6601151615561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38470272 + ... + 38641481.

It is an arithmetic number, because the mean of its divisors is an integer number (356256303480).

Almost surely, 2^{6601151615565} is an apocalyptic number.

6601151615565 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6601151615565 is a deficient number, since it is larger than the sum of its proper divisors (4799050095795).

6601151615565 is a wasteful number, since it uses less digits than its factorization.

6601151615565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77112213.

The product of its (nonzero) digits is 810000, while the sum is 48.

The spelling of 6601151615565 in words is "six trillion, six hundred one billion, one hundred fifty-one million, six hundred fifteen thousand, five hundred sixty-five".