67158338640261 has 64 divisors (see below), whose sum is σ = 103016866176000. Its totient is φ = 38488318732800.

The previous prime is 67158338640257. The next prime is 67158338640383. The reversal of 67158338640261 is 16204683385176.

It is not a de Polignac number, because 67158338640261 - 2² = 67158338640257 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 67158338640195 and 67158338640204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67158338640661) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4107786715 + ... + 4107803063.

It is an arithmetic number, because the mean of its divisors is an integer number (1609638534000).

Almost surely, 2^{67158338640261} is an apocalyptic number.

It is an amenable number.

67158338640261 is a deficient number, since it is larger than the sum of its proper divisors (35858527535739).

67158338640261 is a wasteful number, since it uses less digits than its factorization.

67158338640261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28130.

The product of its (nonzero) digits is 34836480, while the sum is 60.

The spelling of 67158338640261 in words is "sixty-seven trillion, one hundred fifty-eight billion, three hundred thirty-eight million, six hundred forty thousand, two hundred sixty-one".