61512003605345 has 8 divisors (see below), whose sum is σ = 73817394970176. Its totient is φ = 49207609121776.

The previous prime is 61512003605341. The next prime is 61512003605357. The reversal of 61512003605345 is 54350630021516.

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 61512003605345 - 2² = 61512003605341 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61512003605341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249084557 + ... + 249331386.

It is an arithmetic number, because the mean of its divisors is an integer number (9227174371272).

Almost surely, 2^{61512003605345} is an apocalyptic number.

It is an amenable number.

61512003605345 is a deficient number, since it is larger than the sum of its proper divisors (12305391364831).

61512003605345 is a wasteful number, since it uses less digits than its factorization.

61512003605345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498440631.

The product of its (nonzero) digits is 324000, while the sum is 41.

The spelling of 61512003605345 in words is "sixty-one trillion, five hundred twelve billion, three million, six hundred five thousand, three hundred forty-five".