61650506601516 has 192 divisors, whose sum is σ = 169203967672320. Its totient is φ = 17107444062720.

The previous prime is 61650506601487. The next prime is 61650506601569. The reversal of 61650506601516 is 61510660505616.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1158142621 + ... + 1158195851.

It is an arithmetic number, because the mean of its divisors is an integer number (881270664960).

Almost surely, 2^{61650506601516} 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 61650506601516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84601983836160).

61650506601516 is an abundant number, since it is smaller than the sum of its proper divisors (107553461070804).

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

61650506601516 is a wasteful number, since it uses less digits than its factorization.

61650506601516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56204 (or 56202 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 48.

The spelling of 61650506601516 in words is "sixty-one trillion, six hundred fifty billion, five hundred six million, six hundred one thousand, five hundred sixteen".