20272157321512 has 16 divisors (see below), whose sum is σ = 38044569381300. Its totient is φ = 10126938819840.

The previous prime is 20272157321489. The next prime is 20272157321567. The reversal of 20272157321512 is 21512375127202.

It can be written as a sum of positive squares in 2 ways, for example, as 19763768357316 + 508388964196 = 4445646^2 + 713014^2 .

It is a super-2 number, since 2×20272157321512² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1142470689 + ... + 1142488432.

Almost surely, 2^{20272157321512} is an apocalyptic number.

It is an amenable number.

20272157321512 is a deficient number, since it is larger than the sum of its proper divisors (17772412059788).

20272157321512 is a wasteful number, since it uses less digits than its factorization.

20272157321512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2284960236 (or 2284960232 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 40.

The spelling of 20272157321512 in words is "twenty trillion, two hundred seventy-two billion, one hundred fifty-seven million, three hundred twenty-one thousand, five hundred twelve".