105671060621556 has 12 divisors (see below), whose sum is σ = 246565808116992. Its totient is φ = 35223686873848.

The previous prime is 105671060621543. The next prime is 105671060621557. The reversal of 105671060621556 is 655126060176501.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×105671060621556² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105671060621499 and 105671060621508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105671060621557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4402960859220 + ... + 4402960859243.

It is an arithmetic number, because the mean of its divisors is an integer number (20547150676416).

Almost surely, 2^{105671060621556} is an apocalyptic number.

It is an amenable number.

105671060621556 is an abundant number, since it is smaller than the sum of its proper divisors (140894747495436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105671060621556 is a wasteful number, since it uses less digits than its factorization.

105671060621556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8805921718470 (or 8805921718468 counting only the distinct ones).

The product of its (nonzero) digits is 2268000, while the sum is 51.

The spelling of 105671060621556 in words is "one hundred five trillion, six hundred seventy-one billion, sixty million, six hundred twenty-one thousand, five hundred fifty-six".