155291808106 has 16 divisors (see below), whose sum is σ = 237512831688. Its totient is φ = 76128998400.

The previous prime is 155291808101. The next prime is 155291808209. The reversal of 155291808106 is 601808192551.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4754792025 + 150537016081 = 68955^2 + 387991^2 .

It is not an unprimeable number, because it can be changed into a prime (155291808101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1995175 + ... + 2071546.

Almost surely, 2^155291808106 is an apocalyptic number.

155291808106 is a deficient number, since it is larger than the sum of its proper divisors (82221023582).

155291808106 is a wasteful number, since it uses less digits than its factorization.

155291808106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4067097.

The product of its (nonzero) digits is 172800, while the sum is 46.

The spelling of 155291808106 in words is "one hundred fifty-five billion, two hundred ninety-one million, eight hundred eight thousand, one hundred six".