156407742140 has 144 divisors (see below), whose sum is σ = 377188904064. Its totient is φ = 54145843200.

The previous prime is 156407742121. The next prime is 156407742163. The reversal of 156407742140 is 41247704651.

156407742140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 20359100 + ... + 20366780.

Almost surely, 2^156407742140 is an apocalyptic number.

156407742140 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 156407742140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188594452032).

156407742140 is an abundant number, since it is smaller than the sum of its proper divisors (220781161924).

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

156407742140 is a wasteful number, since it uses less digits than its factorization.

156407742140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8008 (or 7989 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 41.

The spelling of 156407742140 in words is "one hundred fifty-six billion, four hundred seven million, seven hundred forty-two thousand, one hundred forty".