151691616 has 120 divisors (see below), whose sum is σ = 456831144. Its totient is φ = 49351680.

The previous prime is 151691593. The next prime is 151691633. The reversal of 151691616 is 616196151.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 110776 + ... + 112136.

Almost surely, 2^151691616 is an apocalyptic number.

151691616 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 151691616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228415572).

151691616 is an abundant number, since it is smaller than the sum of its proper divisors (305139528).

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

151691616 is a wasteful number, since it uses less digits than its factorization.

151691616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426 (or 1409 counting only the distinct ones).

The product of its digits is 9720, while the sum is 36.

The square root of 151691616 is about 12316.3150333206. The cubic root of 151691616 is about 533.3191676793.

The spelling of 151691616 in words is "one hundred fifty-one million, six hundred ninety-one thousand, six hundred sixteen".