16140450525 has 24 divisors (see below), whose sum is σ = 27336417024. Its totient is φ = 8398281600.

The previous prime is 16140450503. The next prime is 16140450563. The reversal of 16140450525 is 52505404161.

It is not a de Polignac number, because 16140450525 - 2¹¹ = 16140448477 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2621389 + ... + 2627538.

It is an arithmetic number, because the mean of its divisors is an integer number (1139017376).

Almost surely, 2^16140450525 is an apocalyptic number.

16140450525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16140450525 is a deficient number, since it is larger than the sum of its proper divisors (11195966499).

16140450525 is a wasteful number, since it uses less digits than its factorization.

16140450525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5248981 (or 5248976 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 16140450525 its reverse (52505404161), we get a palindrome (68645854686).

The spelling of 16140450525 in words is "sixteen billion, one hundred forty million, four hundred fifty thousand, five hundred twenty-five".