156656848273 has 2 divisors, whose sum is σ = 156656848274. Its totient is φ = 156656848272.

The previous prime is 156656848261. The next prime is 156656848277. The reversal of 156656848273 is 372848656651.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147465216144 + 9191632129 = 384012^2 + 95873^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-156656848273 is a prime.

It is a super-2 number, since 2×156656848273² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (156656848277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78328424136 + 78328424137.

It is an arithmetic number, because the mean of its divisors is an integer number (78328424137).

Almost surely, 2^156656848273 is an apocalyptic number.

It is an amenable number.

156656848273 is a deficient number, since it is larger than the sum of its proper divisors (1).

156656848273 is an equidigital number, since it uses as much as digits as its factorization.

156656848273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58060800, while the sum is 61.

The spelling of 156656848273 in words is "one hundred fifty-six billion, six hundred fifty-six million, eight hundred forty-eight thousand, two hundred seventy-three".