61305322505 has 8 divisors (see below), whose sum is σ = 84075870912. Its totient is φ = 42037935408.

The previous prime is 61305322487. The next prime is 61305322543. The reversal of 61305322505 is 50522350316.

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

It is not a de Polignac number, because 61305322505 - 2²⁰ = 61304273929 is a prime.

It is a Duffinian 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, 875790287 + ... + 875790356.

It is an arithmetic number, because the mean of its divisors is an integer number (10509483864).

Almost surely, 2^61305322505 is an apocalyptic number.

It is an amenable number.

61305322505 is a deficient number, since it is larger than the sum of its proper divisors (22770548407).

61305322505 is a wasteful number, since it uses less digits than its factorization.

61305322505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1751580655.

The product of its (nonzero) digits is 27000, while the sum is 32.

The spelling of 61305322505 in words is "sixty-one billion, three hundred five million, three hundred twenty-two thousand, five hundred five".