669052222019 has 16 divisors (see below), whose sum is σ = 688554938400. Its totient is φ = 649625391360.

The previous prime is 669052222009. The next prime is 669052222049. The reversal of 669052222019 is 910222250966.

It is a cyclic number.

It is not a de Polignac number, because 669052222019 - 2¹⁶ = 669052156483 is a prime.

It is a super-2 number, since 2×669052222019² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (669052222009) 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, 51328727 + ... + 51341759.

It is an arithmetic number, because the mean of its divisors is an integer number (43034683650).

Almost surely, 2^669052222019 is an apocalyptic number.

669052222019 is a deficient number, since it is larger than the sum of its proper divisors (19502716381).

669052222019 is a wasteful number, since it uses less digits than its factorization.

669052222019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15830.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 669052222019 in words is "six hundred sixty-nine billion, fifty-two million, two hundred twenty-two thousand, nineteen".