61422017143541 has 16 divisors (see below), whose sum is σ = 67707751422384. Its totient is φ = 55476052291584.

The previous prime is 61422017143483. The next prime is 61422017143549. The reversal of 61422017143541 is 14534171022416.

It can be written as a sum of positive squares in 8 ways, for example, as 10793754598225 + 50628262545316 = 3285385^2 + 7115354^2 .

It is a cyclic number.

It is not a de Polignac number, because 61422017143541 - 2¹⁴ = 61422017127157 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61422017143549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 668791520 + ... + 668883353.

It is an arithmetic number, because the mean of its divisors is an integer number (4231734463899).

Almost surely, 2^{61422017143541} is an apocalyptic number.

It is an amenable number.

61422017143541 is a deficient number, since it is larger than the sum of its proper divisors (6285734278843).

61422017143541 is a wasteful number, since it uses less digits than its factorization.

61422017143541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337675000.

The product of its (nonzero) digits is 161280, while the sum is 41.

Adding to 61422017143541 its reverse (14534171022416), we get a palindrome (75956188165957).

The spelling of 61422017143541 in words is "sixty-one trillion, four hundred twenty-two billion, seventeen million, one hundred forty-three thousand, five hundred forty-one".