105561511054 has 8 divisors (see below), whose sum is σ = 163450081728. Its totient is φ = 51078150480.

The previous prime is 105561511049. The next prime is 105561511079. The reversal of 105561511054 is 450115165501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×105561511054² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 851302447 + ... + 851302570.

It is an arithmetic number, because the mean of its divisors is an integer number (20431260216).

Almost surely, 2^105561511054 is an apocalyptic number.

105561511054 is a deficient number, since it is larger than the sum of its proper divisors (57888570674).

105561511054 is a wasteful number, since it uses less digits than its factorization.

105561511054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702605050.

The product of its (nonzero) digits is 15000, while the sum is 34.

Adding to 105561511054 its reverse (450115165501), we get a palindrome (555676676555).

The spelling of 105561511054 in words is "one hundred five billion, five hundred sixty-one million, five hundred eleven thousand, fifty-four".