10550817159891 has 16 divisors (see below), whose sum is σ = 14895570217248. Its totient is φ = 6619987712000.

The previous prime is 10550817159821. The next prime is 10550817159907. The reversal of 10550817159891 is 19895171805501.

It is a cyclic number.

It is not a de Polignac number, because 10550817159891 - 2¹⁷ = 10550817028819 is a prime.

It is a super-2 number, since 2×10550817159891² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10550817159811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 521791 + ... + 4623191.

It is an arithmetic number, because the mean of its divisors is an integer number (930973138578).

Almost surely, 2^{10550817159891} is an apocalyptic number.

10550817159891 is a deficient number, since it is larger than the sum of its proper divisors (4344753057357).

10550817159891 is a wasteful number, since it uses less digits than its factorization.

10550817159891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4151862.

The product of its (nonzero) digits is 4536000, while the sum is 60.

The spelling of 10550817159891 in words is "ten trillion, five hundred fifty billion, eight hundred seventeen million, one hundred fifty-nine thousand, eight hundred ninety-one".