16260031782666 has 32 divisors (see below), whose sum is σ = 41295318814080. Its totient is φ = 4645723366368.

The previous prime is 16260031782661. The next prime is 16260031782667. The reversal of 16260031782666 is 66628713006261.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (16260031782661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21507978171 + ... + 21507978926.

It is an arithmetic number, because the mean of its divisors is an integer number (1290478712940).

Almost surely, 2^{16260031782666} is an apocalyptic number.

16260031782666 is an abundant number, since it is smaller than the sum of its proper divisors (25035287031414).

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

16260031782666 is a wasteful number, since it uses less digits than its factorization.

16260031782666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43015957115 (or 43015957109 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 16260031782666 in words is "sixteen trillion, two hundred sixty billion, thirty-one million, seven hundred eighty-two thousand, six hundred sixty-six".