2660011658501 has 8 divisors (see below), whose sum is σ = 2712299930784. Its totient is φ = 2607801140880.

The previous prime is 2660011658497. The next prime is 2660011658537. The reversal of 2660011658501 is 1058561100662.

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

It is a cyclic number.

It is not a de Polignac number, because 2660011658501 - 2² = 2660011658497 is a prime.

It is a super-2 number, since 2×2660011658501² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660011658581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19369571 + ... + 19506416.

It is an arithmetic number, because the mean of its divisors is an integer number (339037491348).

Almost surely, 2^{2660011658501} is an apocalyptic number.

It is an amenable number.

2660011658501 is a deficient number, since it is larger than the sum of its proper divisors (52288272283).

2660011658501 is a wasteful number, since it uses less digits than its factorization.

2660011658501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38877331.

The product of its (nonzero) digits is 86400, while the sum is 41.

The spelling of 2660011658501 in words is "two trillion, six hundred sixty billion, eleven million, six hundred fifty-eight thousand, five hundred one".