61266672705 has 32 divisors (see below), whose sum is σ = 112043232000. Its totient is φ = 28004435712.

The previous prime is 61266672683. The next prime is 61266672739. The reversal of 61266672705 is 50727666216.

It is not a de Polignac number, because 61266672705 - 2⁶ = 61266672641 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1067071 + ... + 1123019.

It is an arithmetic number, because the mean of its divisors is an integer number (3501351000).

Almost surely, 2^61266672705 is an apocalyptic number.

It is an amenable number.

61266672705 is a deficient number, since it is larger than the sum of its proper divisors (50776559295).

61266672705 is a wasteful number, since it uses less digits than its factorization.

61266672705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66393.

The product of its (nonzero) digits is 1270080, while the sum is 48.

The spelling of 61266672705 in words is "sixty-one billion, two hundred sixty-six million, six hundred seventy-two thousand, seven hundred five".