10854166491 has 24 divisors (see below), whose sum is σ = 17968785120. Its totient is φ = 6184797696.

The previous prime is 10854166459. The next prime is 10854166513. The reversal of 10854166491 is 19466145801.

10854166491 is a `hidden beast` number, since 1 + 0 + 8 + 541 + 66 + 49 + 1 = 666.

It is not a de Polignac number, because 10854166491 - 2⁵ = 10854166459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10854166291) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 221796 + ... + 266273.

It is an arithmetic number, because the mean of its divisors is an integer number (748699380).

Almost surely, 2^10854166491 is an apocalyptic number.

10854166491 is a deficient number, since it is larger than the sum of its proper divisors (7114618629).

10854166491 is a wasteful number, since it uses less digits than its factorization.

10854166491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488435 (or 488432 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The spelling of 10854166491 in words is "ten billion, eight hundred fifty-four million, one hundred sixty-six thousand, four hundred ninety-one".