61660260117266 has 16 divisors (see below), whose sum is σ = 92528315842560. Its totient is φ = 30817490014080.

The previous prime is 61660260117229. The next prime is 61660260117311. The reversal of 61660260117266 is 66271106206616.

It is a super-2 number, since 2×61660260117266² (a number of 28 digits) contains 22 as substring.

It is a Curzon 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, 67432175 + ... + 68340461.

It is an arithmetic number, because the mean of its divisors is an integer number (5783019740160).

Almost surely, 2^{61660260117266} is an apocalyptic number.

61660260117266 is a deficient number, since it is larger than the sum of its proper divisors (30868055725294).

61660260117266 is a wasteful number, since it uses less digits than its factorization.

61660260117266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922169.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 61660260117266 in words is "sixty-one trillion, six hundred sixty billion, two hundred sixty million, one hundred seventeen thousand, two hundred sixty-six".