61222516300 has 144 divisors (see below), whose sum is σ = 154838839680. Its totient is φ = 20775744000.

The previous prime is 61222516291. The next prime is 61222516321. The reversal of 61222516300 is 361522216.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1378440 + ... + 1422160.

It is an arithmetic number, because the mean of its divisors is an integer number (1075269720).

Almost surely, 2^61222516300 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 61222516300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77419419840).

61222516300 is an abundant number, since it is smaller than the sum of its proper divisors (93616323380).

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

61222516300 is a wasteful number, since it uses less digits than its factorization.

61222516300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43832 (or 43825 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 61222516300 in words is "sixty-one billion, two hundred twenty-two million, five hundred sixteen thousand, three hundred".