61516330565200 has 120 divisors (see below), whose sum is σ = 168911344339200. Its totient is φ = 21090679411200.

The previous prime is 61516330565171. The next prime is 61516330565201. The reversal of 61516330565200 is 256503361516.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61516330565201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98082201 + ... + 98707399.

It is an arithmetic number, because the mean of its divisors is an integer number (1407594536160).

Almost surely, 2^{61516330565200} is an apocalyptic number.

It is an amenable number.

61516330565200 is an abundant number, since it is smaller than the sum of its proper divisors (107395013774000).

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

61516330565200 is a wasteful number, since it uses less digits than its factorization.

61516330565200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660365 (or 660354 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 43.

The spelling of 61516330565200 in words is "sixty-one trillion, five hundred sixteen billion, three hundred thirty million, five hundred sixty-five thousand, two hundred".