155214040212450 has 144 divisors (see below), whose sum is σ = 426914212021440. Its totient is φ = 40408140608640.

The previous prime is 155214040212431. The next prime is 155214040212467. The reversal of 155214040212450 is 54212040412551.

155214040212450 is a `hidden beast` number, since 1 + 5 + 5 + 2 + 1 + 4 + 0 + 402 + 1 + 245 + 0 = 666.

155214040212450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×155214040212450² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 37771971 + ... + 41679129.

Almost surely, 2^{155214040212450} is an apocalyptic number.

155214040212450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 155214040212450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213457106010720).

155214040212450 is an abundant number, since it is smaller than the sum of its proper divisors (271700171808990).

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

155214040212450 is a wasteful number, since it uses less digits than its factorization.

155214040212450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3909273 (or 3909265 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 36.

The spelling of 155214040212450 in words is "one hundred fifty-five trillion, two hundred fourteen billion, forty million, two hundred twelve thousand, four hundred fifty".