157332043220 has 72 divisors (see below), whose sum is σ = 363305061000. Its totient is φ = 57189425920.

The previous prime is 157332043199. The next prime is 157332043243. The reversal of 157332043220 is 22340233751.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17505406864 + 139826636356 = 132308^2 + 373934^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7028606 + ... + 7050954.

It is an arithmetic number, because the mean of its divisors is an integer number (5045903625).

Almost surely, 2^157332043220 is an apocalyptic number.

157332043220 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 157332043220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181652530500).

157332043220 is an abundant number, since it is smaller than the sum of its proper divisors (205973017780).

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

157332043220 is a wasteful number, since it uses less digits than its factorization.

157332043220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25289 (or 25276 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 32.

Adding to 157332043220 its reverse (22340233751), we get a palindrome (179672276971).

The spelling of 157332043220 in words is "one hundred fifty-seven billion, three hundred thirty-two million, forty-three thousand, two hundred twenty".