151616 has 28 divisors (see below), whose sum is σ = 316992. Its totient is φ = 71808.

The previous prime is 151609. The next prime is 151631. The reversal of 151616 is 616151.

It is a happy number.

It is a super-2 number, since 2×151616² = 45974822912, which contains 22 as substring.

It is an unprimeable number.

151616 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1421 + ... + 1523.

2¹⁵¹⁶¹⁶ is an apocalyptic number.

151616 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 151616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158496).

151616 is an abundant number, since it is smaller than the sum of its proper divisors (165376).

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

151616 is a wasteful number, since it uses less digits than its factorization.

151616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 128 counting only the distinct ones).

The product of its digits is 180, while the sum is 20.

The square root of 151616 is about 389.3789927564. The cubic root of 151616 is about 53.3230535743.

Adding to 151616 its reverse (616151), we get a palindrome (767767).

It can be divided in two parts, 151 and 616, that added together give a palindrome (767).

The spelling of 151616 in words is "one hundred fifty-one thousand, six hundred sixteen".