61051000505 has 16 divisors (see below), whose sum is σ = 80026386048. Its totient is φ = 44342352000.

The previous prime is 61051000499. The next prime is 61051000531. The reversal of 61051000505 is 50500015016.

It is not a de Polignac number, because 61051000505 - 2³² = 56756033209 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 687461 + ... + 771170.

It is an arithmetic number, because the mean of its divisors is an integer number (5001649128).

Almost surely, 2^61051000505 is an apocalyptic number.

It is an amenable number.

61051000505 is a deficient number, since it is larger than the sum of its proper divisors (18975385543).

61051000505 is a wasteful number, since it uses less digits than its factorization.

61051000505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459408.

The product of its (nonzero) digits is 750, while the sum is 23.

The spelling of 61051000505 in words is "sixty-one billion, fifty-one million, five hundred five", and thus it is an aban number.