61208660480 has 160 divisors (see below), whose sum is σ = 169517810880. Its totient is φ = 20948254720.

The previous prime is 61208660479. The next prime is 61208660521. The reversal of 61208660480 is 8406680216.

It is a tau number, because it is divible by the number of its divisors (160).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 414791 + ... + 542649.

It is an arithmetic number, because the mean of its divisors is an integer number (1059486318).

Almost surely, 2^61208660480 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 61208660480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84758905440).

61208660480 is an abundant number, since it is smaller than the sum of its proper divisors (108309150400).

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

61208660480 is a wasteful number, since it uses less digits than its factorization.

61208660480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127910 (or 127894 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The spelling of 61208660480 in words is "sixty-one billion, two hundred eight million, six hundred sixty thousand, four hundred eighty".