156205642241 has 16 divisors (see below), whose sum is σ = 175470167808. Its totient is φ = 138983687920.

The previous prime is 156205642183. The next prime is 156205642259. The reversal of 156205642241 is 142246502651.

It is not a de Polignac number, because 156205642241 - 2²⁶ = 156138533377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 156205642195 and 156205642204.

It is not an unprimeable number, because it can be changed into a prime (156205645241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1185950 + ... + 1311063.

It is an arithmetic number, because the mean of its divisors is an integer number (10966885488).

Almost surely, 2^156205642241 is an apocalyptic number.

156205642241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

156205642241 is a deficient number, since it is larger than the sum of its proper divisors (19264525567).

156205642241 is an equidigital number, since it uses as much as digits as its factorization.

156205642241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2497093 (or 2497071 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 156205642241 in words is "one hundred fifty-six billion, two hundred five million, six hundred forty-two thousand, two hundred forty-one".