105377495161 has 3 divisors (see below), whose sum is σ = 105377819781. Its totient is φ = 105377170542.

The previous prime is 105377495159. The next prime is 105377495173. The reversal of 105377495161 is 161594773501.

It is a happy number.

The square root of 105377495161 is 324619.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 105377495161 - 2¹ = 105377495159 is a prime.

It is a super-2 number, since 2×105377495161² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105377493161) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 162310 + ... + 486928.

It is an arithmetic number, because the mean of its divisors is an integer number (35125939927).

Almost surely, 2^105377495161 is an apocalyptic number.

105377495161 is the 324619-th square number.

105377495161 is the 162310-th centered octagonal number.

It is an amenable number.

105377495161 is a deficient number, since it is larger than the sum of its proper divisors (324620).

105377495161 is an frugal number, since it uses more digits than its factorization.

105377495161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649238 (or 324619 counting only the distinct ones).

The product of its (nonzero) digits is 793800, while the sum is 49.

Multiplying 105377495161 by its sum of digits (49), we get a square (5163497262889 = 2272333²).

The spelling of 105377495161 in words is "one hundred five billion, three hundred seventy-seven million, four hundred ninety-five thousand, one hundred sixty-one".