16662261063 has 16 divisors (see below), whose sum is σ = 25711508480. Its totient is φ = 9400768416.

The previous prime is 16662261053. The next prime is 16662261067. The reversal of 16662261063 is 36016226661.

It is not a de Polignac number, because 16662261063 - 2⁸ = 16662260807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16662261067) by changing a digit.

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, 5020120 + ... + 5023437.

It is an arithmetic number, because the mean of its divisors is an integer number (1606969280).

Almost surely, 2^16662261063 is an apocalyptic number.

16662261063 is a deficient number, since it is larger than the sum of its proper divisors (9049247417).

16662261063 is a wasteful number, since it uses less digits than its factorization.

16662261063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10043646.

The product of its (nonzero) digits is 93312, while the sum is 39.

The spelling of 16662261063 in words is "sixteen billion, six hundred sixty-two million, two hundred sixty-one thousand, sixty-three".