100776582145 has 4 divisors (see below), whose sum is σ = 120931898580. Its totient is φ = 80621265712.

The previous prime is 100776582113. The next prime is 100776582161. The reversal of 100776582145 is 541285677001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32646707856 + 68129874289 = 180684^2 + 261017^2 .

It is a cyclic number.

It is not a de Polignac number, because 100776582145 - 2⁵ = 100776582113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100776582095 and 100776582104.

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, 10077658210 + ... + 10077658219.

It is an arithmetic number, because the mean of its divisors is an integer number (30232974645).

Almost surely, 2^100776582145 is an apocalyptic number.

It is an amenable number.

100776582145 is a deficient number, since it is larger than the sum of its proper divisors (20155316435).

100776582145 is an equidigital number, since it uses as much as digits as its factorization.

100776582145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20155316434.

The product of its (nonzero) digits is 470400, while the sum is 46.

The spelling of 100776582145 in words is "one hundred billion, seven hundred seventy-six million, five hundred eighty-two thousand, one hundred forty-five".