161616202 has 8 divisors (see below), whose sum is σ = 264462912. Its totient is φ = 73461900.

The previous prime is 161616199. The next prime is 161616209. The reversal of 161616202 is 202616161.

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

It is a super-2 number, since 2×161616202² = 52239593497809608, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161616209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3673074 + ... + 3673117.

It is an arithmetic number, because the mean of its divisors is an integer number (33057864).

Almost surely, 2^161616202 is an apocalyptic number.

161616202 is a deficient number, since it is larger than the sum of its proper divisors (102846710).

161616202 is a wasteful number, since it uses less digits than its factorization.

161616202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7346204.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 161616202 is about 12712.8361115842. The cubic root of 161616202 is about 544.7053391316.

The spelling of 161616202 in words is "one hundred sixty-one million, six hundred sixteen thousand, two hundred two".