166436505110564 has 24 divisors (see below), whose sum is σ = 313819528137528. Its totient is φ = 76779935032320.

The previous prime is 166436505110467. The next prime is 166436505110581. The reversal of 166436505110564 is 465011505634661.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1493650622500 + 164942854488064 = 1222150^2 + 12843008^2 .

It is a super-2 number, since 2×166436505110564² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 768921587 + ... + 769138010.

It is an arithmetic number, because the mean of its divisors is an integer number (13075813672397).

Almost surely, 2^{166436505110564} is an apocalyptic number.

It is an amenable number.

166436505110564 is a deficient number, since it is larger than the sum of its proper divisors (147383023026964).

166436505110564 is a wasteful number, since it uses less digits than its factorization.

166436505110564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1538061695 (or 1538061693 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 53.

The spelling of 166436505110564 in words is "one hundred sixty-six trillion, four hundred thirty-six billion, five hundred five million, one hundred ten thousand, five hundred sixty-four".