156228420000 has 240 divisors, whose sum is σ = 534746076480. Its totient is φ = 39849216000.

The previous prime is 156228419933. The next prime is 156228420077. The reversal of 156228420000 is 24822651.

156228420000 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 (240).

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

It is a self number, because there is not a number n which added to its sum of digits gives 156228420000.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1323396 + ... + 1436604.

It is an arithmetic number, because the mean of its divisors is an integer number (2228108652).

Almost surely, 2^156228420000 is an apocalyptic number.

156228420000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156228420000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267373038240).

156228420000 is an abundant number, since it is smaller than the sum of its proper divisors (378517656480).

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

156228420000 is a wasteful number, since it uses less digits than its factorization.

156228420000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113265 (or 113242 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The spelling of 156228420000 in words is "one hundred fifty-six billion, two hundred twenty-eight million, four hundred twenty thousand".