155213331412000 has 96 divisors (see below), whose sum is σ = 381363397112880. Its totient is φ = 62084641996800.

The previous prime is 155213331411977. The next prime is 155213331412037. The reversal of 155213331412000 is 214133312551.

It can be written as a sum of positive squares in 8 ways, for example, as 16832081646864 + 138381249765136 = 4102692^2 + 11763556^2 .

It is a super-2 number, since 2×155213331412000² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 510524032 + ... + 510827968.

Almost surely, 2^{155213331412000} is an apocalyptic number.

155213331412000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155213331412000 is an abundant number, since it is smaller than the sum of its proper divisors (226150065700880).

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

155213331412000 is a wasteful number, since it uses less digits than its factorization.

155213331412000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431631 (or 431613 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 155213331412000 its reverse (214133312551), we get a palindrome (155427464724551).

The spelling of 155213331412000 in words is "one hundred fifty-five trillion, two hundred thirteen billion, three hundred thirty-one million, four hundred twelve thousand".