155670918853 has 2 divisors, whose sum is σ = 155670918854. Its totient is φ = 155670918852.

The previous prime is 155670918829. The next prime is 155670918857. The reversal of 155670918853 is 358819076551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127901362689 + 27769556164 = 357633^2 + 166642^2 .

It is a cyclic number.

It is not a de Polignac number, because 155670918853 - 2³³ = 147080984261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155670918857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77835459426 + 77835459427.

It is an arithmetic number, because the mean of its divisors is an integer number (77835459427).

Almost surely, 2^155670918853 is an apocalyptic number.

It is an amenable number.

155670918853 is a deficient number, since it is larger than the sum of its proper divisors (1).

155670918853 is an equidigital number, since it uses as much as digits as its factorization.

155670918853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072000, while the sum is 58.

The spelling of 155670918853 in words is "one hundred fifty-five billion, six hundred seventy million, nine hundred eighteen thousand, eight hundred fifty-three".