156426454440 has 48 divisors (see below), whose sum is σ = 508385978100. Its totient is φ = 41713721088.

The previous prime is 156426454421. The next prime is 156426454441. The reversal of 156426454440 is 44454624651.

156426454440 is a `hidden beast` number, since 1 + 5 + 6 + 4 + 2 + 64 + 544 + 40 = 666.

156426454440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 154651854564 + 1774599876 = 393258^2 + 42126^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (156426454441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 217258605 + ... + 217259324.

Almost surely, 2^156426454440 is an apocalyptic number.

156426454440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156426454440 is an abundant number, since it is smaller than the sum of its proper divisors (351959523660).

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

156426454440 is a wasteful number, since it uses less digits than its factorization.

156426454440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434517946 (or 434517939 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 45.

The spelling of 156426454440 in words is "one hundred fifty-six billion, four hundred twenty-six million, four hundred fifty-four thousand, four hundred forty".