156606225775771 has 24 divisors (see below), whose sum is σ = 164112330791360. Its totient is φ = 149430349829376.

The previous prime is 156606225775673. The next prime is 156606225775789. The reversal of 156606225775771 is 177577522606651.

It is not a de Polignac number, because 156606225775771 - 2³⁵ = 156571866037403 is a prime.

It is a super-2 number, since 2×156606225775771² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 156606225775697 and 156606225775706.

It is not an unprimeable number, because it can be changed into a prime (156606225779771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1777209205 + ... + 1777297321.

Almost surely, 2^{156606225775771} is an apocalyptic number.

156606225775771 is a deficient number, since it is larger than the sum of its proper divisors (7506105015589).

156606225775771 is an equidigital number, since it uses as much as digits as its factorization.

156606225775771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96355 (or 96332 counting only the distinct ones).

The product of its (nonzero) digits is 259308000, while the sum is 67.

The spelling of 156606225775771 in words is "one hundred fifty-six trillion, six hundred six billion, two hundred twenty-five million, seven hundred seventy-five thousand, seven hundred seventy-one".