67668051 has 8 divisors (see below), whose sum is σ = 98426304. Its totient is φ = 41010920.

The previous prime is 67668043. The next prime is 67668067. The reversal of 67668051 is 15086676.

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 67668051 - 2³ = 67668043 is a prime.

It is a super-2 number, since 2×67668051² = 9157930252277202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67668011) 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, 1025241 + ... + 1025306.

It is an arithmetic number, because the mean of its divisors is an integer number (12303288).

Almost surely, 2^67668051 is an apocalyptic number.

67668051 is a deficient number, since it is larger than the sum of its proper divisors (30758253).

67668051 is a wasteful number, since it uses less digits than its factorization.

67668051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050561.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 67668051 is about 8226.0592630980. The cubic root of 67668051 is about 407.5002591992.

The spelling of 67668051 in words is "sixty-seven million, six hundred sixty-eight thousand, fifty-one".