157547221600 has 144 divisors (see below), whose sum is σ = 404891397792. Its totient is φ = 59744706560.

The previous prime is 157547221597. The next prime is 157547221631. The reversal of 157547221600 is 6122745751.

157547221600 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×157547221600² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2041314 + ... + 2117086.

It is an arithmetic number, because the mean of its divisors is an integer number (2811745818).

Almost surely, 2^157547221600 is an apocalyptic number.

157547221600 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 157547221600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202445698896).

157547221600 is an abundant number, since it is smaller than the sum of its proper divisors (247344176192).

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

157547221600 is a wasteful number, since it uses less digits than its factorization.

157547221600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75929 (or 75916 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 40.

The spelling of 157547221600 in words is "one hundred fifty-seven billion, five hundred forty-seven million, two hundred twenty-one thousand, six hundred".