105501661057 has 8 divisors (see below), whose sum is σ = 119597024960. Its totient is φ = 92260561680.

The previous prime is 105501661039. The next prime is 105501661063. The reversal of 105501661057 is 750166105501.

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 105501661057 - 2¹⁵ = 105501628289 is a prime.

It is a super-2 number, since 2×105501661057² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105501664057) 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, 213565869 + ... + 213566362.

It is an arithmetic number, because the mean of its divisors is an integer number (14949628120).

Almost surely, 2^105501661057 is an apocalyptic number.

It is an amenable number.

105501661057 is a deficient number, since it is larger than the sum of its proper divisors (14095363903).

105501661057 is a wasteful number, since it uses less digits than its factorization.

105501661057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427132263.

The product of its (nonzero) digits is 31500, while the sum is 37.

Adding to 105501661057 its reverse (750166105501), we get a palindrome (855667766558).

The spelling of 105501661057 in words is "one hundred five billion, five hundred one million, six hundred sixty-one thousand, fifty-seven".