155016232150016 has 88 divisors (see below), whose sum is σ = 317608799192664. Its totient is φ = 75577263390720.

The previous prime is 155016232149949. The next prime is 155016232150063. The reversal of 155016232150016 is 610051232610551.

It can be written as a sum of positive squares in 4 ways, for example, as 44898576409600 + 110117655740416 = 6700640^2 + 10493696^2 .

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, 77650376 + ... + 79621688.

Almost surely, 2^{155016232150016} is an apocalyptic number.

155016232150016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155016232150016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158804399596332).

155016232150016 is an abundant number, since it is smaller than the sum of its proper divisors (162592567042648).

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

155016232150016 is a wasteful number, since it uses less digits than its factorization.

155016232150016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973247 (or 1973229 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 38.

Adding to 155016232150016 its reverse (610051232610551), we get a palindrome (765067464760567).

The spelling of 155016232150016 in words is "one hundred fifty-five trillion, sixteen billion, two hundred thirty-two million, one hundred fifty thousand, sixteen".