156361221030 has 64 divisors (see below), whose sum is σ = 438001551360. Its totient is φ = 34979286144.

The previous prime is 156361221013. The next prime is 156361221073. The reversal of 156361221030 is 30122163651.

156361221030 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7911165 + ... + 7930904.

It is an arithmetic number, because the mean of its divisors is an integer number (6843774240).

Almost surely, 2^156361221030 is an apocalyptic number.

156361221030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

156361221030 is an abundant number, since it is smaller than the sum of its proper divisors (281640330330).

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

156361221030 is a wasteful number, since it uses less digits than its factorization.

156361221030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15842133.

The product of its (nonzero) digits is 6480, while the sum is 30.

Adding to 156361221030 its reverse (30122163651), we get a palindrome (186483384681).

The spelling of 156361221030 in words is "one hundred fifty-six billion, three hundred sixty-one million, two hundred twenty-one thousand, thirty".