71554661160 has 64 divisors (see below), whose sum is σ = 215626682880. Its totient is φ = 18995669760.

The previous prime is 71554661137. The next prime is 71554661197. The reversal of 71554661160 is 6116645517.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1310211 + ... + 1363730.

It is an arithmetic number, because the mean of its divisors is an integer number (3369166920).

Almost surely, 2^71554661160 is an apocalyptic number.

It is an amenable number.

71554661160 is an abundant number, since it is smaller than the sum of its proper divisors (144072021720).

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

71554661160 is a wasteful number, since it uses less digits than its factorization.

71554661160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2674178 (or 2674174 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The spelling of 71554661160 in words is "seventy-one billion, five hundred fifty-four million, six hundred sixty-one thousand, one hundred sixty".