61363044565 has 8 divisors (see below), whose sum is σ = 73655701560. Its totient is φ = 49077070272.

The previous prime is 61363044527. The next prime is 61363044583. The reversal of 61363044565 is 56544036316.

It can be written as a sum of positive squares in 4 ways, for example, as 2480139601 + 58882904964 = 49801^2 + 242658^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 61363044565 - 2⁹ = 61363044053 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1650450 + ... + 1687219.

It is an arithmetic number, because the mean of its divisors is an integer number (9206962695).

Almost surely, 2^61363044565 is an apocalyptic number.

It is an amenable number.

61363044565 is a deficient number, since it is larger than the sum of its proper divisors (12292656995).

61363044565 is a wasteful number, since it uses less digits than its factorization.

61363044565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3341351.

The product of its (nonzero) digits is 777600, while the sum is 43.

The spelling of 61363044565 in words is "sixty-one billion, three hundred sixty-three million, forty-four thousand, five hundred sixty-five".