133789417220 has 48 divisors (see below), whose sum is σ = 290774761200. Its totient is φ = 51647500800.

The previous prime is 133789417217. The next prime is 133789417259. The reversal of 133789417220 is 22714987331.

It can be written as a sum of positive squares in 8 ways, for example, as 23723392576 + 110066024644 = 154024^2 + 331762^2 .

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, 1289270 + ... + 1389170.

It is an arithmetic number, because the mean of its divisors is an integer number (6057807525).

Almost surely, 2^133789417220 is an apocalyptic number.

133789417220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133789417220 is an abundant number, since it is smaller than the sum of its proper divisors (156985343980).

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

133789417220 is a wasteful number, since it uses less digits than its factorization.

133789417220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102248 (or 102246 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 47.

The spelling of 133789417220 in words is "one hundred thirty-three billion, seven hundred eighty-nine million, four hundred seventeen thousand, two hundred twenty".