156161222200 has 48 divisors (see below), whose sum is σ = 363162861000. Its totient is φ = 62449345920.

The previous prime is 156161222153. The next prime is 156161222209. The reversal of 156161222200 is 2222161651.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156161222209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 751266 + ... + 936334.

Almost surely, 2^156161222200 is an apocalyptic number.

156161222200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156161222200 is an abundant number, since it is smaller than the sum of its proper divisors (207001638800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

156161222200 is a wasteful number, since it uses less digits than its factorization.

156161222200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189304 (or 189295 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 156161222200 its reverse (2222161651), we get a palindrome (158383383851).

The spelling of 156161222200 in words is "one hundred fifty-six billion, one hundred sixty-one million, two hundred twenty-two thousand, two hundred".