133211321777776 has 80 divisors (see below), whose sum is σ = 283001967072000. Its totient is φ = 60240621196800.

The previous prime is 133211321777761. The next prime is 133211321777819. The reversal of 133211321777776 is 677777123112331.

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 133211321777776.

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, 381201691 + ... + 381550981.

It is an arithmetic number, because the mean of its divisors is an integer number (3537524588400).

Almost surely, 2^{133211321777776} is an apocalyptic number.

133211321777776 is a gapful number since it is divisible by the number (16) 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 133211321777776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141500983536000).

133211321777776 is an abundant number, since it is smaller than the sum of its proper divisors (149790645294224).

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

133211321777776 is a wasteful number, since it uses less digits than its factorization.

133211321777776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360398 (or 360392 counting only the distinct ones).

The product of its digits is 10890936, while the sum is 58.

The spelling of 133211321777776 in words is "one hundred thirty-three trillion, two hundred eleven billion, three hundred twenty-one million, seven hundred seventy-seven thousand, seven hundred seventy-six".