67478551161 has 48 divisors (see below), whose sum is σ = 107452296000. Its totient is φ = 37534855680.

The previous prime is 67478551141. The next prime is 67478551171. The reversal of 67478551161 is 16115587476.

It is not a de Polignac number, because 67478551161 - 2⁶ = 67478551097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67478551121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2742090 + ... + 2766588.

It is an arithmetic number, because the mean of its divisors is an integer number (2238589500).

Almost surely, 2^67478551161 is an apocalyptic number.

It is an amenable number.

67478551161 is a deficient number, since it is larger than the sum of its proper divisors (39973744839).

67478551161 is a wasteful number, since it uses less digits than its factorization.

67478551161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25014 (or 25007 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 51.

The spelling of 67478551161 in words is "sixty-seven billion, four hundred seventy-eight million, five hundred fifty-one thousand, one hundred sixty-one".