16506251316260 has 48 divisors (see below), whose sum is σ = 36715092641136. Its totient is φ = 6211924303872.

The previous prime is 16506251316239. The next prime is 16506251316323. The reversal of 16506251316260 is 6261315260561.

It can be written as a sum of positive squares in 8 ways, for example, as 1055895994624 + 15450355321636 = 1027568^2 + 3930694^2 .

It is a super-3 number, since 3×16506251316260³ (a number of 41 digits) contains 333 as substring.

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 15 ways as a sum of consecutive naturals, for example, 7605047 + ... + 9531486.

It is an arithmetic number, because the mean of its divisors is an integer number (764897763357).

Almost surely, 2^{16506251316260} is an apocalyptic number.

16506251316260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16506251316260 is an abundant number, since it is smaller than the sum of its proper divisors (20208841324876).

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

16506251316260 is a wasteful number, since it uses less digits than its factorization.

16506251316260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17139392 (or 17139390 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 44.

The spelling of 16506251316260 in words is "sixteen trillion, five hundred six billion, two hundred fifty-one million, three hundred sixteen thousand, two hundred sixty".