47120161665 has 64 divisors (see below), whose sum is σ = 79614443520. Its totient is φ = 23766462720.

The previous prime is 47120161639. The next prime is 47120161681. The reversal of 47120161665 is 56616102174.

It is not a de Polignac number, because 47120161665 - 2⁸ = 47120161409 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 63 ways as a sum of consecutive naturals, for example, 3950731 + ... + 3962639.

It is an arithmetic number, because the mean of its divisors is an integer number (1243975680).

Almost surely, 2^47120161665 is an apocalyptic number.

It is an amenable number.

47120161665 is a deficient number, since it is larger than the sum of its proper divisors (32494281855).

47120161665 is a wasteful number, since it uses less digits than its factorization.

47120161665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12142.

The product of its (nonzero) digits is 60480, while the sum is 39.

The spelling of 47120161665 in words is "forty-seven billion, one hundred twenty million, one hundred sixty-one thousand, six hundred sixty-five".