67655161 has 8 divisors (see below), whose sum is σ = 78588224. Its totient is φ = 57039120.

The previous prime is 67655149. The next prime is 67655197. The reversal of 67655161 is 16155676.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 67655161 - 2¹⁵ = 67622393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67655161.

It is not an unprimeable number, because it can be changed into a prime (67655111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78795 + ... + 79648.

It is an arithmetic number, because the mean of its divisors is an integer number (9823528).

Almost surely, 2^67655161 is an apocalyptic number.

67655161 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

67655161 is a deficient number, since it is larger than the sum of its proper divisors (10933063).

67655161 is a wasteful number, since it uses less digits than its factorization.

67655161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158511.

The product of its digits is 37800, while the sum is 37.

The square root of 67655161 is about 8225.2757400588. The cubic root of 67655161 is about 407.4743828226.

The spelling of 67655161 in words is "sixty-seven million, six hundred fifty-five thousand, one hundred sixty-one".