1355321504166 has 48 divisors (see below), whose sum is σ = 3153339491904. Its totient is φ = 387217212816.

The previous prime is 1355321504143. The next prime is 1355321504179. The reversal of 1355321504166 is 6614051235531.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7306321 + ... + 7489523.

It is an arithmetic number, because the mean of its divisors is an integer number (65694572748).

Almost surely, 2^{1355321504166} is an apocalyptic number.

1355321504166 is an abundant number, since it is smaller than the sum of its proper divisors (1798017987738).

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

1355321504166 is a wasteful number, since it uses less digits than its factorization.

1355321504166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208385 (or 208378 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 42.

Adding to 1355321504166 its reverse (6614051235531), we get a palindrome (7969372739697).

The spelling of 1355321504166 in words is "one trillion, three hundred fifty-five billion, three hundred twenty-one million, five hundred four thousand, one hundred sixty-six".