105412521646 has 8 divisors (see below), whose sum is σ = 158559225840. Its totient is φ = 52559446368.

The previous prime is 105412521611. The next prime is 105412521647. The reversal of 105412521646 is 646125214501.

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

It is a super-2 number, since 2×105412521646² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105412521647) by changing a digit.

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, 73406331 + ... + 73407766.

It is an arithmetic number, because the mean of its divisors is an integer number (19819903230).

Almost surely, 2^105412521646 is an apocalyptic number.

105412521646 is a deficient number, since it is larger than the sum of its proper divisors (53146704194).

105412521646 is a wasteful number, since it uses less digits than its factorization.

105412521646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146814458.

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 105412521646 in words is "one hundred five billion, four hundred twelve million, five hundred twenty-one thousand, six hundred forty-six".