61614246552 has 64 divisors (see below), whose sum is σ = 157376494080. Its totient is φ = 20092985472.

The previous prime is 61614246521. The next prime is 61614246563. The reversal of 61614246552 is 25564241616.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3197298 + ... + 3216510.

It is an arithmetic number, because the mean of its divisors is an integer number (2459007720).

Almost surely, 2^61614246552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61614246552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78688247040).

61614246552 is an abundant number, since it is smaller than the sum of its proper divisors (95762247528).

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

61614246552 is a wasteful number, since it uses less digits than its factorization.

61614246552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22112 (or 22108 counting only the distinct ones).

The product of its digits is 345600, while the sum is 42.

The spelling of 61614246552 in words is "sixty-one billion, six hundred fourteen million, two hundred forty-six thousand, five hundred fifty-two".