61193334065 has 8 divisors (see below), whose sum is σ = 73435112808. Its totient is φ = 48952592640.

The previous prime is 61193334053. The next prime is 61193334127. The reversal of 61193334065 is 56043339116.

It can be written as a sum of positive squares in 4 ways, for example, as 10827651136 + 50365682929 = 104056^2 + 224423^2 .

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

It is not a de Polignac number, because 61193334065 - 2¹² = 61193329969 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123032 + ... + 370841.

It is an arithmetic number, because the mean of its divisors is an integer number (9179389101).

Almost surely, 2^61193334065 is an apocalyptic number.

It is an amenable number.

61193334065 is a deficient number, since it is larger than the sum of its proper divisors (12241778743).

61193334065 is a wasteful number, since it uses less digits than its factorization.

61193334065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518659.

The product of its (nonzero) digits is 174960, while the sum is 41.

The spelling of 61193334065 in words is "sixty-one billion, one hundred ninety-three million, three hundred thirty-four thousand, sixty-five".