155853816 has 16 divisors (see below), whose sum is σ = 389634600. Its totient is φ = 51951264.

The previous prime is 155853811. The next prime is 155853829. The reversal of 155853816 is 618358551.

155853816 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155853811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3246931 + ... + 3246978.

Almost surely, 2^155853816 is an apocalyptic number.

It is an amenable number.

155853816 is an abundant number, since it is smaller than the sum of its proper divisors (233780784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155853816 is a wasteful number, since it uses less digits than its factorization.

155853816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6493918 (or 6493914 counting only the distinct ones).

The product of its digits is 144000, while the sum is 42.

The square root of 155853816 is about 12484.1425816914. The cubic root of 155853816 is about 538.1530591813.

The spelling of 155853816 in words is "one hundred fifty-five million, eight hundred fifty-three thousand, eight hundred sixteen".