61171668866000 has 160 divisors (see below), whose sum is σ = 184411132289280. Its totient is φ = 19066494144000.

The previous prime is 61171668865927. The next prime is 61171668866023. The reversal of 61171668866000 is 66886617116.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 198455315 + ... + 198763314.

It is an arithmetic number, because the mean of its divisors is an integer number (1152569576808).

Almost surely, 2^{61171668866000} is an apocalyptic number.

It is an amenable number.

61171668866000 is an abundant number, since it is smaller than the sum of its proper divisors (123239463423280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61171668866000 is a wasteful number, since it uses less digits than its factorization.

61171668866000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397218670 (or 397218654 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 56.

The spelling of 61171668866000 in words is "sixty-one trillion, one hundred seventy-one billion, six hundred sixty-eight million, eight hundred sixty-six thousand".