157575358645 has 4 divisors (see below), whose sum is σ = 189090430380. Its totient is φ = 126060286912.

The previous prime is 157575358643. The next prime is 157575358657. The reversal of 157575358645 is 546853575751.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 81201061764 + 76374296881 = 284958^2 + 276359^2 .

It is a cyclic number.

It is not a de Polignac number, because 157575358645 - 2¹ = 157575358643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157575358643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15757535860 + ... + 15757535869.

It is an arithmetic number, because the mean of its divisors is an integer number (47272607595).

Almost surely, 2^157575358645 is an apocalyptic number.

It is an amenable number.

157575358645 is a deficient number, since it is larger than the sum of its proper divisors (31515071735).

157575358645 is an equidigital number, since it uses as much as digits as its factorization.

157575358645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31515071734.

The product of its digits is 88200000, while the sum is 61.

The spelling of 157575358645 in words is "one hundred fifty-seven billion, five hundred seventy-five million, three hundred fifty-eight thousand, six hundred forty-five".