161436203222 has 8 divisors (see below), whose sum is σ = 276747776976. Its totient is φ = 69186944232.

The previous prime is 161436203221. The next prime is 161436203311. The reversal of 161436203222 is 222302634161.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161436203221) 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, 5765578673 + ... + 5765578700.

It is an arithmetic number, because the mean of its divisors is an integer number (34593472122).

Almost surely, 2^161436203222 is an apocalyptic number.

161436203222 is a deficient number, since it is larger than the sum of its proper divisors (115311573754).

161436203222 is a wasteful number, since it uses less digits than its factorization.

161436203222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11531157382.

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 161436203222 its reverse (222302634161), we get a palindrome (383738837383).

The spelling of 161436203222 in words is "one hundred sixty-one billion, four hundred thirty-six million, two hundred three thousand, two hundred twenty-two".