105561134450 has 24 divisors (see below), whose sum is σ = 196352260032. Its totient is φ = 42222615120.

The previous prime is 105561134431. The next prime is 105561134501. The reversal of 105561134450 is 54431165501.

It is a super-2 number, since 2×105561134450² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105561134450.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2208707 + ... + 2255993.

It is an arithmetic number, because the mean of its divisors is an integer number (8181344168).

Almost surely, 2^105561134450 is an apocalyptic number.

105561134450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105561134450 is a deficient number, since it is larger than the sum of its proper divisors (90791125582).

105561134450 is a wasteful number, since it uses less digits than its factorization.

105561134450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91946 (or 91941 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

Adding to 105561134450 its reverse (54431165501), we get a palindrome (159992299951).

The spelling of 105561134450 in words is "one hundred five billion, five hundred sixty-one million, one hundred thirty-four thousand, four hundred fifty".