67613036121 has 16 divisors (see below), whose sum is σ = 101404099520. Its totient is φ = 45075355956.

The previous prime is 67613036077. The next prime is 67613036149. The reversal of 67613036121 is 12163031676.

67613036121 is a `hidden beast` number, since 6 + 7 + 6 + 1 + 30 + 3 + 612 + 1 = 666.

It is not a de Polignac number, because 67613036121 - 2¹⁷ = 67612905049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67613036921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15455755 + ... + 15460128.

It is an arithmetic number, because the mean of its divisors is an integer number (6337756220).

Almost surely, 2^67613036121 is an apocalyptic number.

It is an amenable number.

67613036121 is a deficient number, since it is larger than the sum of its proper divisors (33791063399).

67613036121 is an frugal number, since it uses more digits than its factorization.

67613036121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30915904 (or 30915886 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

Adding to 67613036121 its reverse (12163031676), we get a palindrome (79776067797).

The spelling of 67613036121 in words is "sixty-seven billion, six hundred thirteen million, thirty-six thousand, one hundred twenty-one".