105487221667 has 8 divisors (see below), whose sum is σ = 108514985456. Its totient is φ = 102468760992.

The previous prime is 105487221599. The next prime is 105487221691. The reversal of 105487221667 is 766122784501.

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 105487221667 - 2²⁷ = 105353003939 is a prime.

It is a super-2 number, since 2×105487221667² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105487221667.

It is not an unprimeable number, because it can be changed into a prime (105487222667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2302773 + ... + 2348134.

It is an arithmetic number, because the mean of its divisors is an integer number (13564373182).

Almost surely, 2^105487221667 is an apocalyptic number.

105487221667 is a deficient number, since it is larger than the sum of its proper divisors (3027763789).

105487221667 is an equidigital number, since it uses as much as digits as its factorization.

105487221667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4651557.

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 105487221667 in words is "one hundred five billion, four hundred eighty-seven million, two hundred twenty-one thousand, six hundred sixty-seven".