155211016 has 32 divisors (see below), whose sum is σ = 304479000. Its totient is φ = 74077696.

The previous prime is 155211013. The next prime is 155211029. The reversal of 155211016 is 610112551.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 143280900 + 11930116 = 11970^2 + 3454^2 .

It is not an unprimeable number, because it can be changed into a prime (155211011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16890 + ... + 24406.

Almost surely, 2^155211016 is an apocalyptic number.

It is an amenable number.

155211016 is a deficient number, since it is larger than the sum of its proper divisors (149267984).

155211016 is a wasteful number, since it uses less digits than its factorization.

155211016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7641 (or 7637 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 22.

The square root of 155211016 is about 12458.3713221271. The cubic root of 155211016 is about 537.4121908838.

Adding to 155211016 its reverse (610112551), we get a palindrome (765323567).

The spelling of 155211016 in words is "one hundred fifty-five million, two hundred eleven thousand, sixteen".