67106252220541 has 4 divisors (see below), whose sum is σ = 67110091927452. Its totient is φ = 67102412513632.

The previous prime is 67106252220521. The next prime is 67106252220629. The reversal of 67106252220541 is 14502225260176.

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 33094086540516 + 34012165680025 = 5752746^2 + 5831995^2 .

It is a cyclic number.

It is not a de Polignac number, because 67106252220541 - 2²⁷ = 67106118002813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67106252220521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1919827240 + ... + 1919862193.

It is an arithmetic number, because the mean of its divisors is an integer number (16777522981863).

Almost surely, 2^{67106252220541} is an apocalyptic number.

It is an amenable number.

67106252220541 is a deficient number, since it is larger than the sum of its proper divisors (3839706911).

67106252220541 is a wasteful number, since it uses less digits than its factorization.

67106252220541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3839706910.

The product of its (nonzero) digits is 403200, while the sum is 43.

The spelling of 67106252220541 in words is "sixty-seven trillion, one hundred six billion, two hundred fifty-two million, two hundred twenty thousand, five hundred forty-one".