162637448297 has 4 divisors (see below), whose sum is σ = 165303636036. Its totient is φ = 159971260560.

The previous prime is 162637448287. The next prime is 162637448321. The reversal of 162637448297 is 792844736261.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 792844736261 = 157 ⋅5049966473.

It can be written as a sum of positive squares in 2 ways, for example, as 5868172816 + 156769275481 = 76604^2 + 395941^2 .

It is a cyclic number.

It is not a de Polignac number, because 162637448297 - 2¹² = 162637444201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162637448287) 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, 1333093778 + ... + 1333093899.

It is an arithmetic number, because the mean of its divisors is an integer number (41325909009).

Almost surely, 2^162637448297 is an apocalyptic number.

It is an amenable number.

162637448297 is a deficient number, since it is larger than the sum of its proper divisors (2666187739).

162637448297 is an equidigital number, since it uses as much as digits as its factorization.

162637448297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2666187738.

The product of its digits is 24385536, while the sum is 59.

The spelling of 162637448297 in words is "one hundred sixty-two billion, six hundred thirty-seven million, four hundred forty-eight thousand, two hundred ninety-seven".