133456449672 has 96 divisors (see below), whose sum is σ = 444854854080. Its totient is φ = 35197303680.

The previous prime is 133456449661. The next prime is 133456449683. The reversal of 133456449672 is 276944654331.

133456449672 is a `hidden beast` number, since 1 + 3 + 3 + 4 + 564 + 4 + 9 + 6 + 72 = 666.

It is an interprime number because it is at equal distance from previous prime (133456449661) and next prime (133456449683).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10177854 + ... + 10190957.

It is an arithmetic number, because the mean of its divisors is an integer number (4633904730).

Almost surely, 2^133456449672 is an apocalyptic number.

133456449672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133456449672 is an abundant number, since it is smaller than the sum of its proper divisors (311398404408).

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

133456449672 is a wasteful number, since it uses less digits than its factorization.

133456449672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20368843 (or 20368836 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 54.

The spelling of 133456449672 in words is "one hundred thirty-three billion, four hundred fifty-six million, four hundred forty-nine thousand, six hundred seventy-two".