155345200514120 has 16 divisors (see below), whose sum is σ = 349526701156860. Its totient is φ = 62138080205632.

The previous prime is 155345200514117. The next prime is 155345200514129. The reversal of 155345200514120 is 21415002543551.

It can be written as a sum of positive squares in 2 ways, for example, as 126866477304004 + 28478723210116 = 11263502^2 + 5336546^2 .

It is not an unprimeable number, because it can be changed into a prime (155345200514129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1941815006387 + ... + 1941815006466.

Almost surely, 2^{155345200514120} is an apocalyptic number.

155345200514120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155345200514120 is an abundant number, since it is smaller than the sum of its proper divisors (194181500642740).

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

155345200514120 is a wasteful number, since it uses less digits than its factorization.

155345200514120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3883630012864 (or 3883630012860 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 38.

The spelling of 155345200514120 in words is "one hundred fifty-five trillion, three hundred forty-five billion, two hundred million, five hundred fourteen thousand, one hundred twenty".