155322855368 has 12 divisors (see below), whose sum is σ = 291232443915. Its totient is φ = 77660870328.

The previous prime is 155322855319. The next prime is 155322855383. The reversal of 155322855368 is 863558223551.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 77661427684 + 77661427684 = 278678^2 + 278678^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=278678.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1045043 + ... + 1184381.

Almost surely, 2^155322855368 is an apocalyptic number.

It is an amenable number.

155322855368 is a deficient number, since it is larger than the sum of its proper divisors (135909588547).

155322855368 is an frugal number, since it uses more digits than its factorization.

155322855368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278684 (or 139341 counting only the distinct ones).

The product of its digits is 8640000, while the sum is 53.

The spelling of 155322855368 in words is "one hundred fifty-five billion, three hundred twenty-two million, eight hundred fifty-five thousand, three hundred sixty-eight".