67945547016 has 24 divisors (see below), whose sum is σ = 184019190030. Its totient is φ = 22648515648.

The previous prime is 67945547003. The next prime is 67945547017. The reversal of 67945547016 is 61074554976.

67945547016 is a `hidden beast` number, since 6 + 7 + 9 + 4 + 554 + 70 + 16 = 666.

It can be written as a sum of positive squares in only one way, i.e., 52877002500 + 15068544516 = 229950^2 + 122754^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (67945547017) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 471844005 + ... + 471844148.

Almost surely, 2^67945547016 is an apocalyptic number.

It is an amenable number.

67945547016 is an abundant number, since it is smaller than the sum of its proper divisors (116073643014).

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

67945547016 is a wasteful number, since it uses less digits than its factorization.

67945547016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943688165 (or 943688158 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 54.

The spelling of 67945547016 in words is "sixty-seven billion, nine hundred forty-five million, five hundred forty-seven thousand, sixteen".