155451811371 has 16 divisors (see below), whose sum is σ = 208793203200. Its totient is φ = 102875218208.

The previous prime is 155451811367. The next prime is 155451811373. The reversal of 155451811371 is 173118154551.

It is a cyclic number.

It is not a de Polignac number, because 155451811371 - 2² = 155451811367 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155451811373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114681 + ... + 569258.

It is an arithmetic number, because the mean of its divisors is an integer number (13049575200).

Almost surely, 2^155451811371 is an apocalyptic number.

155451811371 is a deficient number, since it is larger than the sum of its proper divisors (53341391829).

155451811371 is a wasteful number, since it uses less digits than its factorization.

155451811371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684498.

The product of its digits is 84000, while the sum is 42.

It can be divided in two parts, 15545 and 1811371, that added together give a triangular number (1826916 = T₁₉₁₁).

The spelling of 155451811371 in words is "one hundred fifty-five billion, four hundred fifty-one million, eight hundred eleven thousand, three hundred seventy-one".