133266511420 has 24 divisors (see below), whose sum is σ = 319839627744. Its totient is φ = 45691375296.

The previous prime is 133266511337. The next prime is 133266511421. The reversal of 133266511420 is 24115662331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133266511421) 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, 475951687 + ... + 475951966.

It is an arithmetic number, because the mean of its divisors is an integer number (13326651156).

Almost surely, 2^133266511420 is an apocalyptic number.

133266511420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133266511420 is an abundant number, since it is smaller than the sum of its proper divisors (186573116324).

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

133266511420 is a wasteful number, since it uses less digits than its factorization.

133266511420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951903669 (or 951903667 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 133266511420 in words is "one hundred thirty-three billion, two hundred sixty-six million, five hundred eleven thousand, four hundred twenty".