267961081600 has 216 divisors, whose sum is σ = 670389092352. Its totient is φ = 106037145600.

The previous prime is 267961081589. The next prime is 267961081601. The reversal of 267961081600 is 6180169762.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (267961081601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 272594709 + ... + 272595691.

Almost surely, 2^267961081600 is an apocalyptic number.

267961081600 is a gapful number since it is divisible by the number (20) 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 267961081600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335194546176).

267961081600 is an abundant number, since it is smaller than the sum of its proper divisors (402428010752).

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

267961081600 is a wasteful number, since it uses less digits than its factorization.

267961081600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423 (or 1404 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 267961081600 in words is "two hundred sixty-seven billion, nine hundred sixty-one million, eighty-one thousand, six hundred".