20066217272 has 32 divisors (see below), whose sum is σ = 38021508000. Its totient is φ = 9927450624.

The previous prime is 20066217263. The next prime is 20066217293. The reversal of 20066217272 is 27271266002.

It is a super-2 number, since 2×20066217272² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 522968 + ... + 560024.

It is an arithmetic number, because the mean of its divisors is an integer number (1188172125).

Almost surely, 2^20066217272 is an apocalyptic number.

It is an amenable number.

20066217272 is a deficient number, since it is larger than the sum of its proper divisors (17955290728).

20066217272 is a wasteful number, since it uses less digits than its factorization.

20066217272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37775 (or 37771 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The spelling of 20066217272 in words is "twenty billion, sixty-six million, two hundred seventeen thousand, two hundred seventy-two".