202197495985 has 8 divisors (see below), whose sum is σ = 242690786280. Its totient is φ = 161722136064.

The previous prime is 202197495959. The next prime is 202197496003. The reversal of 202197495985 is 589594791202.

It can be written as a sum of positive squares in 4 ways, for example, as 3194962576 + 199002533409 = 56524^2 + 446097^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202197495985 - 2²³ = 202189107377 is a prime.

It is a super-2 number, since 2×202197495985² (a number of 23 digits) contains 22 as substring.

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, 4457770 + ... + 4502899.

It is an arithmetic number, because the mean of its divisors is an integer number (30336348285).

Almost surely, 2^202197495985 is an apocalyptic number.

It is an amenable number.

202197495985 is a deficient number, since it is larger than the sum of its proper divisors (40493290295).

202197495985 is an equidigital number, since it uses as much as digits as its factorization.

202197495985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8965187.

The product of its (nonzero) digits is 16329600, while the sum is 61.

The spelling of 202197495985 in words is "two hundred two billion, one hundred ninety-seven million, four hundred ninety-five thousand, nine hundred eighty-five".