105215545768 has 16 divisors (see below), whose sum is σ = 197707092660. Its totient is φ = 52493654400.

The previous prime is 105215545741. The next prime is 105215545783. The reversal of 105215545768 is 867545512501.

It can be written as a sum of positive squares in 2 ways, for example, as 104715665604 + 499880164 = 323598^2 + 22358^2 .

It is a super-2 number, since 2×105215545768² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14260893 + ... + 14268268.

Almost surely, 2^105215545768 is an apocalyptic number.

It is an amenable number.

105215545768 is a deficient number, since it is larger than the sum of its proper divisors (92491546892).

105215545768 is a wasteful number, since it uses less digits than its factorization.

105215545768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28529628 (or 28529624 counting only the distinct ones).

The product of its (nonzero) digits is 1680000, while the sum is 49.

The spelling of 105215545768 in words is "one hundred five billion, two hundred fifteen million, five hundred forty-five thousand, seven hundred sixty-eight".