67366700408 has 64 divisors (see below), whose sum is σ = 149096325120. Its totient is φ = 27924652800.

The previous prime is 67366700369. The next prime is 67366700461. The reversal of 67366700408 is 80400766376.

It is a super-2 number, since 2×67366700408² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3450113 + ... + 3469583.

It is an arithmetic number, because the mean of its divisors is an integer number (2329630080).

Almost surely, 2^67366700408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67366700408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74548162560).

67366700408 is an abundant number, since it is smaller than the sum of its proper divisors (81729624712).

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

67366700408 is a wasteful number, since it uses less digits than its factorization.

67366700408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21508 (or 21504 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 47.

The spelling of 67366700408 in words is "sixty-seven billion, three hundred sixty-six million, seven hundred thousand, four hundred eight".