156205221048 has 24 divisors (see below), whose sum is σ = 423055807200. Its totient is φ = 52068406992.

The previous prime is 156205221043. The next prime is 156205221059. The reversal of 156205221048 is 840122502651.

156205221048 is a `hidden beast` number, since 1 + 5 + 6 + 20 + 522 + 104 + 8 = 666.

156205221048 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156205221043) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 1084758408 + ... + 1084758551.

It is an arithmetic number, because the mean of its divisors is an integer number (17627325300).

Almost surely, 2^156205221048 is an apocalyptic number.

156205221048 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

156205221048 is an abundant number, since it is smaller than the sum of its proper divisors (266850586152).

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

156205221048 is a wasteful number, since it uses less digits than its factorization.

156205221048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2169516971 (or 2169516964 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

Adding to 156205221048 its reverse (840122502651), we get a palindrome (996327723699).

The spelling of 156205221048 in words is "one hundred fifty-six billion, two hundred five million, two hundred twenty-one thousand, forty-eight".