61512241566 has 8 divisors (see below), whose sum is σ = 123024483144. Its totient is φ = 20504080520.

The previous prime is 61512241517. The next prime is 61512241573. The reversal of 61512241566 is 66514221516.

61512241566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

61512241566 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5126020125 + ... + 5126020136.

It is an arithmetic number, because the mean of its divisors is an integer number (15378060393).

Almost surely, 2^61512241566 is an apocalyptic number.

61512241566 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61512241566 is a wasteful number, since it uses less digits than its factorization.

61512241566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10252040266.

The product of its digits is 86400, while the sum is 39.

The spelling of 61512241566 in words is "sixty-one billion, five hundred twelve million, two hundred forty-one thousand, five hundred sixty-six".