155411645211264 has 128 divisors (see below), whose sum is σ = 444576784639680. Its totient is φ = 47817911623680.

The previous prime is 155411645211257. The next prime is 155411645211283. The reversal of 155411645211264 is 462112546114551.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242945724 + ... + 243584580.

Almost surely, 2^{155411645211264} is an apocalyptic number.

It is an amenable number.

155411645211264 is an abundant number, since it is smaller than the sum of its proper divisors (289165139428416).

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

155411645211264 is a wasteful number, since it uses less digits than its factorization.

155411645211264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687618 (or 687606 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 48.

The spelling of 155411645211264 in words is "one hundred fifty-five trillion, four hundred eleven billion, six hundred forty-five million, two hundred eleven thousand, two hundred sixty-four".