155143435411 has 16 divisors (see below), whose sum is σ = 172462429440. Its totient is φ = 138893784480.

The previous prime is 155143435409. The next prime is 155143435441. The reversal of 155143435411 is 114534341551.

It is a cyclic number.

It is not a de Polignac number, because 155143435411 - 2¹ = 155143435409 is a prime.

It is a super-2 number, since 2×155143435411² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155143435441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2102400 + ... + 2174941.

It is an arithmetic number, because the mean of its divisors is an integer number (10778901840).

Almost surely, 2^155143435411 is an apocalyptic number.

155143435411 is a deficient number, since it is larger than the sum of its proper divisors (17318994029).

155143435411 is a wasteful number, since it uses less digits than its factorization.

155143435411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4277466.

The product of its digits is 72000, while the sum is 37.

Adding to 155143435411 its reverse (114534341551), we get a palindrome (269677776962).

The spelling of 155143435411 in words is "one hundred fifty-five billion, one hundred forty-three million, four hundred thirty-five thousand, four hundred eleven".