206231365555145 has 32 divisors (see below), whose sum is σ = 287584073187840. Its totient is φ = 139050230215680.

The previous prime is 206231365555121. The next prime is 206231365555183. The reversal of 206231365555145 is 541555563132602.

It is not a de Polignac number, because 206231365555145 - 2¹⁶ = 206231365489609 is a prime.

It is a super-2 number, since 2×206231365555145² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110320400 + ... + 112174209.

It is an arithmetic number, because the mean of its divisors is an integer number (8987002287120).

Almost surely, 2^{206231365555145} is an apocalyptic number.

It is an amenable number.

206231365555145 is a deficient number, since it is larger than the sum of its proper divisors (81352707632695).

206231365555145 is a wasteful number, since it uses less digits than its factorization.

206231365555145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222495065.

The product of its (nonzero) digits is 16200000, while the sum is 53.

The spelling of 206231365555145 in words is "two hundred six trillion, two hundred thirty-one billion, three hundred sixty-five million, five hundred fifty-five thousand, one hundred forty-five".