669299069735 has 16 divisors (see below), whose sum is σ = 823612145664. Its totient is φ = 521857540512.

The previous prime is 669299069707. The next prime is 669299069737. The reversal of 669299069735 is 537960992966.

It is a cyclic number.

It is not a de Polignac number, because 669299069735 - 2³⁰ = 668225327911 is a prime.

It is a super-2 number, since 2×669299069735² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669299069737) 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, 3262247 + ... + 3461336.

It is an arithmetic number, because the mean of its divisors is an integer number (51475759104).

Almost surely, 2^669299069735 is an apocalyptic number.

669299069735 is a deficient number, since it is larger than the sum of its proper divisors (154313075929).

669299069735 is a wasteful number, since it uses less digits than its factorization.

669299069735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6724094.

The product of its (nonzero) digits is 297606960, while the sum is 71.

The spelling of 669299069735 in words is "six hundred sixty-nine billion, two hundred ninety-nine million, sixty-nine thousand, seven hundred thirty-five".