61540050544152 has 64 divisors (see below), whose sum is σ = 154285441044480. Its totient is φ = 20455331574912.

The previous prime is 61540050544117. The next prime is 61540050544153. The reversal of 61540050544152 is 25144505004516.

It is a happy number.

61540050544152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61540050544153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41583538 + ... + 43038014.

It is an arithmetic number, because the mean of its divisors is an integer number (2410710016320).

Almost surely, 2^{61540050544152} is an apocalyptic number.

It is an amenable number.

61540050544152 is an abundant number, since it is smaller than the sum of its proper divisors (92745390500328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61540050544152 is a wasteful number, since it uses less digits than its factorization.

61540050544152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459472 (or 1459468 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 42.

Adding to 61540050544152 its reverse (25144505004516), we get a palindrome (86684555548668).

The spelling of 61540050544152 in words is "sixty-one trillion, five hundred forty billion, fifty million, five hundred forty-four thousand, one hundred fifty-two".