16501386260 has 24 divisors (see below), whose sum is σ = 36691318440. Its totient is φ = 6212286464.

The previous prime is 16501386227. The next prime is 16501386263. The reversal of 16501386260 is 6268310561.

It can be written as a sum of positive squares in 4 ways, for example, as 236975236 + 16264411024 = 15394^2 + 127532^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16501386263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24266405 + ... + 24267084.

It is an arithmetic number, because the mean of its divisors is an integer number (1528804935).

Almost surely, 2^16501386260 is an apocalyptic number.

16501386260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16501386260 is an abundant number, since it is smaller than the sum of its proper divisors (20189932180).

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

16501386260 is a wasteful number, since it uses less digits than its factorization.

16501386260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48533515 (or 48533513 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 16501386260 in words is "sixteen billion, five hundred one million, three hundred eighty-six thousand, two hundred sixty".