156051320206 has 4 divisors (see below), whose sum is σ = 234076980312. Its totient is φ = 78025660102.

The previous prime is 156051320197. The next prime is 156051320221. The reversal of 156051320206 is 602023150651.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 602023150651 = 13 ⋅46309473127.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39012830050 + ... + 39012830053.

It is an arithmetic number, because the mean of its divisors is an integer number (58519245078).

Almost surely, 2^156051320206 is an apocalyptic number.

156051320206 is a deficient number, since it is larger than the sum of its proper divisors (78025660106).

156051320206 is an equidigital number, since it uses as much as digits as its factorization.

156051320206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78025660105.

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 156051320206 its reverse (602023150651), we get a palindrome (758074470857).

The spelling of 156051320206 in words is "one hundred fifty-six billion, fifty-one million, three hundred twenty thousand, two hundred six".