156204801653 has 2 divisors, whose sum is σ = 156204801654. Its totient is φ = 156204801652.

The previous prime is 156204801629. The next prime is 156204801661. The reversal of 156204801653 is 356108402651.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125853238564 + 30351563089 = 354758^2 + 174217^2 .

It is a cyclic number.

It is not a de Polignac number, because 156204801653 - 2¹⁶ = 156204736117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 156204801653.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (156204801353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78102400826 + 78102400827.

It is an arithmetic number, because the mean of its divisors is an integer number (78102400827).

Almost surely, 2^156204801653 is an apocalyptic number.

It is an amenable number.

156204801653 is a deficient number, since it is larger than the sum of its proper divisors (1).

156204801653 is an equidigital number, since it uses as much as digits as its factorization.

156204801653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 156204801653 in words is "one hundred fifty-six billion, two hundred four million, eight hundred one thousand, six hundred fifty-three".