16266651378 has 16 divisors (see below), whose sum is σ = 32534673600. Its totient is φ = 5421988656.

The previous prime is 16266651337. The next prime is 16266651397. The reversal of 16266651378 is 87315666261.

It is a self number, because there is not a number n which added to its sum of digits gives 16266651378.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161523 + ... + 242121.

It is an arithmetic number, because the mean of its divisors is an integer number (2033417100).

Almost surely, 2^16266651378 is an apocalyptic number.

16266651378 is an abundant number, since it is smaller than the sum of its proper divisors (16268022222).

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

16266651378 is a wasteful number, since it uses less digits than its factorization.

16266651378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114241.

The product of its digits is 2177280, while the sum is 51.

The spelling of 16266651378 in words is "sixteen billion, two hundred sixty-six million, six hundred fifty-one thousand, three hundred seventy-eight".