16152122520 has 96 divisors (see below), whose sum is σ = 54438667920. Its totient is φ = 4307230080.

The previous prime is 16152122461. The next prime is 16152122527. The reversal of 16152122520 is 2522125161.

16152122520 is a `hidden beast` number, since 1 + 6 + 15 + 2 + 122 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16152122527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 821151 + ... + 840590.

Almost surely, 2^16152122520 is an apocalyptic number.

16152122520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16152122520 is an abundant number, since it is smaller than the sum of its proper divisors (38286545400).

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

16152122520 is a wasteful number, since it uses less digits than its factorization.

16152122520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1661767 (or 1661751 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 16152122520 its reverse (2522125161), we get a palindrome (18674247681).

It can be divided in two parts, 161521 and 22520, that added together give a square (184041 = 429²).

The spelling of 16152122520 in words is "sixteen billion, one hundred fifty-two million, one hundred twenty-two thousand, five hundred twenty".