61453583872220 has 96 divisors (see below), whose sum is σ = 131651414802432. Its totient is φ = 24090726240000.

The previous prime is 61453583872183. The next prime is 61453583872237. The reversal of 61453583872220 is 2227838535416.

It is a happy number.

61453583872220 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 an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 374472785 + ... + 374636855.

It is an arithmetic number, because the mean of its divisors is an integer number (1371368904192).

Almost surely, 2^{61453583872220} is an apocalyptic number.

It is an amenable number.

61453583872220 is an abundant number, since it is smaller than the sum of its proper divisors (70197830930212).

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

61453583872220 is a wasteful number, since it uses less digits than its factorization.

61453583872220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165723 (or 165721 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 56.

The spelling of 61453583872220 in words is "sixty-one trillion, four hundred fifty-three billion, five hundred eighty-three million, eight hundred seventy-two thousand, two hundred twenty".