157323261152643 has 4 divisors (see below), whose sum is σ = 209764348203528. Its totient is φ = 104882174101760.

The previous prime is 157323261152627. The next prime is 157323261152653. The reversal of 157323261152643 is 346251162323751.

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

It is a cyclic number.

It is not a de Polignac number, because 157323261152643 - 2⁴ = 157323261152627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157323261152653) 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, 26220543525438 + ... + 26220543525443.

It is an arithmetic number, because the mean of its divisors is an integer number (52441087050882).

Almost surely, 2^{157323261152643} is an apocalyptic number.

157323261152643 is a deficient number, since it is larger than the sum of its proper divisors (52441087050885).

157323261152643 is an equidigital number, since it uses as much as digits as its factorization.

157323261152643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52441087050884.

The product of its digits is 5443200, while the sum is 51.

The spelling of 157323261152643 in words is "one hundred fifty-seven trillion, three hundred twenty-three billion, two hundred sixty-one million, one hundred fifty-two thousand, six hundred forty-three".