61541142144506 has 16 divisors (see below), whose sum is σ = 92590290760968. Its totient is φ = 30677824929600.

The previous prime is 61541142144497. The next prime is 61541142144617. The reversal of 61541142144506 is 60544124114516.

It can be written as a sum of positive squares in 4 ways, for example, as 47843630114281 + 13697512030225 = 6916909^2 + 3701015^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27169985 + ... + 29347748.

Almost surely, 2^{61541142144506} is an apocalyptic number.

61541142144506 is a deficient number, since it is larger than the sum of its proper divisors (31049148616462).

61541142144506 is a wasteful number, since it uses less digits than its factorization.

61541142144506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56519377.

The product of its (nonzero) digits is 460800, while the sum is 44.

The spelling of 61541142144506 in words is "sixty-one trillion, five hundred forty-one billion, one hundred forty-two million, one hundred forty-four thousand, five hundred six".