67266630144 has 240 divisors, whose sum is σ = 230090148288. Its totient is φ = 19218788352.

The previous prime is 67266630131. The next prime is 67266630209. The reversal of 67266630144 is 44103666276.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 67266630144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 832294 + ... + 909530.

Almost surely, 2^67266630144 is an apocalyptic number.

67266630144 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67266630144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115045074144).

67266630144 is an abundant number, since it is smaller than the sum of its proper divisors (162823518144).

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

67266630144 is an frugal number, since it uses more digits than its factorization.

67266630144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77277 (or 77249 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 45.

The spelling of 67266630144 in words is "sixty-seven billion, two hundred sixty-six million, six hundred thirty thousand, one hundred forty-four".