61660523203097 has 24 divisors (see below), whose sum is σ = 77297209588872. Its totient is φ = 48753405792000.

The previous prime is 61660523203087. The next prime is 61660523203127. The reversal of 61660523203097 is 79030232506616.

It can be written as a sum of positive squares in 4 ways, for example, as 2713584111616 + 58946939091481 = 1647296^2 + 7677691^2 .

It is not a de Polignac number, because 61660523203097 - 2¹⁸ = 61660522940953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61660523203087) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 31736654 + ... + 33623447.

It is an arithmetic number, because the mean of its divisors is an integer number (3220717066203).

Almost surely, 2^{61660523203097} is an apocalyptic number.

It is an amenable number.

61660523203097 is a deficient number, since it is larger than the sum of its proper divisors (15636686385775).

61660523203097 is a wasteful number, since it uses less digits than its factorization.

61660523203097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65361609 (or 65361602 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 50.

The spelling of 61660523203097 in words is "sixty-one trillion, six hundred sixty billion, five hundred twenty-three million, two hundred three thousand, ninety-seven".