10001166501655 has 8 divisors (see below), whose sum is σ = 13715885488032. Its totient is φ = 6857942743968.

The previous prime is 10001166501619. The next prime is 10001166501673. The reversal of 10001166501655 is 55610566110001.

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 10001166501655 - 2⁷ = 10001166501527 is a prime.

It is a super-2 number, since 2×10001166501655² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142873807132 + ... + 142873807201.

It is an arithmetic number, because the mean of its divisors is an integer number (1714485686004).

Almost surely, 2^{10001166501655} is an apocalyptic number.

10001166501655 is a deficient number, since it is larger than the sum of its proper divisors (3714718986377).

10001166501655 is an equidigital number, since it uses as much as digits as its factorization.

10001166501655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285747614345.

The product of its (nonzero) digits is 27000, while the sum is 37.

The spelling of 10001166501655 in words is "ten trillion, one billion, one hundred sixty-six million, five hundred one thousand, six hundred fifty-five".