157682756801 has 4 divisors (see below), whose sum is σ = 157744426452. Its totient is φ = 157621087152.

The previous prime is 157682756729. The next prime is 157682756821. The reversal of 157682756801 is 108657286751.

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 32737474225 + 124945282576 = 180935^2 + 353476^2 .

It is a cyclic number.

It is not a de Polignac number, because 157682756801 - 2¹⁰ = 157682755777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157682756821) 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, 30830990 + ... + 30836103.

It is an arithmetic number, because the mean of its divisors is an integer number (39436106613).

Almost surely, 2^157682756801 is an apocalyptic number.

It is an amenable number.

157682756801 is a deficient number, since it is larger than the sum of its proper divisors (61669651).

157682756801 is an equidigital number, since it uses as much as digits as its factorization.

157682756801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61669650.

The product of its (nonzero) digits is 5644800, while the sum is 56.

The spelling of 157682756801 in words is "one hundred fifty-seven billion, six hundred eighty-two million, seven hundred fifty-six thousand, eight hundred one".