19668160272 has 40 divisors (see below), whose sum is σ = 50816124544. Its totient is φ = 6555187584.

The previous prime is 19668160249. The next prime is 19668160301. The reversal of 19668160272 is 27206186691.

It is a super-2 number, since 2×19668160272² (a number of 21 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 414438 + ... + 459450.

Almost surely, 2^19668160272 is an apocalyptic number.

19668160272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19668160272 is an abundant number, since it is smaller than the sum of its proper divisors (31147964272).

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

19668160272 is a wasteful number, since it uses less digits than its factorization.

19668160272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54127 (or 54121 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 19668160272 in words is "nineteen billion, six hundred sixty-eight million, one hundred sixty thousand, two hundred seventy-two".