155505213214 has 16 divisors (see below), whose sum is σ = 264421820880. Its totient is φ = 67994182080.

The previous prime is 155505213197. The next prime is 155505213229. The reversal of 155505213214 is 412312505551.

It is a super-3 number, since 3×155505213214³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 155505213214.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157393447 + ... + 157394434.

It is an arithmetic number, because the mean of its divisors is an integer number (16526363805).

Almost surely, 2^155505213214 is an apocalyptic number.

155505213214 is a deficient number, since it is larger than the sum of its proper divisors (108916607666).

155505213214 is a wasteful number, since it uses less digits than its factorization.

155505213214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314787915.

The product of its (nonzero) digits is 30000, while the sum is 34.

Adding to 155505213214 its reverse (412312505551), we get a palindrome (567817718765).

The spelling of 155505213214 in words is "one hundred fifty-five billion, five hundred five million, two hundred thirteen thousand, two hundred fourteen".