61606363073 has 4 divisors (see below), whose sum is σ = 61609775700. Its totient is φ = 61602950448.

The previous prime is 61606363051. The next prime is 61606363079. The reversal of 61606363073 is 37036360616.

61606363073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15642004624 + 45964358449 = 125068^2 + 214393^2 .

It is a cyclic number.

It is not a de Polignac number, because 61606363073 - 2¹⁰ = 61606362049 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61606363073.

It is not an unprimeable number, because it can be changed into a prime (61606363079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1679090 + ... + 1715387.

It is an arithmetic number, because the mean of its divisors is an integer number (15402443925).

Almost surely, 2^61606363073 is an apocalyptic number.

It is an amenable number.

61606363073 is a deficient number, since it is larger than the sum of its proper divisors (3412627).

61606363073 is a wasteful number, since it uses less digits than its factorization.

61606363073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3412626.

The product of its (nonzero) digits is 244944, while the sum is 41.

The spelling of 61606363073 in words is "sixty-one billion, six hundred six million, three hundred sixty-three thousand, seventy-three".