157228021052 has 24 divisors (see below), whose sum is σ = 276945389280. Its totient is φ = 78101273600.

The previous prime is 157228021051. The next prime is 157228021073. The reversal of 157228021052 is 250120822751.

It is a super-4 number, since 4×157228021052⁴ (a number of 46 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157228021051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1199552 + ... + 1324152.

It is an arithmetic number, because the mean of its divisors is an integer number (11539391220).

Almost surely, 2^157228021052 is an apocalyptic number.

It is an amenable number.

157228021052 is a deficient number, since it is larger than the sum of its proper divisors (119717368228).

157228021052 is a wasteful number, since it uses less digits than its factorization.

157228021052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126661 (or 126659 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 35.

The spelling of 157228021052 in words is "one hundred fifty-seven billion, two hundred twenty-eight million, twenty-one thousand, fifty-two".