61044266566 has 8 divisors (see below), whose sum is σ = 92172800304. Its totient is φ = 30319999800.

The previous prime is 61044266551. The next prime is 61044266567. The reversal of 61044266566 is 66566244016.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61044266567) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 101066365 + ... + 101066968.

It is an arithmetic number, because the mean of its divisors is an integer number (11521600038).

Almost surely, 2^61044266566 is an apocalyptic number.

61044266566 is a deficient number, since it is larger than the sum of its proper divisors (31128533738).

61044266566 is a wasteful number, since it uses less digits than its factorization.

61044266566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202133486.

The product of its (nonzero) digits is 1244160, while the sum is 46.

The spelling of 61044266566 in words is "sixty-one billion, forty-four million, two hundred sixty-six thousand, five hundred sixty-six".