133464521431056 has 80 divisors (see below), whose sum is σ = 355376759056704. Its totient is φ = 43136385718272.

The previous prime is 133464521431009. The next prime is 133464521431081. The reversal of 133464521431056 is 650134125464331.

It is a super-2 number, since 2×133464521431056² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 133464521430996 and 133464521431014.

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, 235713741 + ... + 236279276.

Almost surely, 2^{133464521431056} is an apocalyptic number.

133464521431056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

133464521431056 is an abundant number, since it is smaller than the sum of its proper divisors (221912237625648).

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

133464521431056 is a wasteful number, since it uses less digits than its factorization.

133464521431056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471993208 (or 471993202 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 48.

Adding to 133464521431056 its reverse (650134125464331), we get a palindrome (783598646895387).

The spelling of 133464521431056 in words is "one hundred thirty-three trillion, four hundred sixty-four billion, five hundred twenty-one million, four hundred thirty-one thousand, fifty-six".