669006201504540 has 192 divisors, whose sum is σ = 1920250059154560. Its totient is φ = 173928480768000.

The previous prime is 669006201504481. The next prime is 669006201504551. The reversal of 669006201504540 is 45405102600966.

It is a super-2 number, since 2×669006201504540² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 669006201504540.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 44243508180 + ... + 44243523300.

It is an arithmetic number, because the mean of its divisors is an integer number (10001302391430).

Almost surely, 2^{669006201504540} is an apocalyptic number.

669006201504540 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 669006201504540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (960125029577280).

669006201504540 is an abundant number, since it is smaller than the sum of its proper divisors (1251243857650020).

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

669006201504540 is a wasteful number, since it uses less digits than its factorization.

669006201504540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26584 (or 26582 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 48.

The spelling of 669006201504540 in words is "six hundred sixty-nine trillion, six billion, two hundred one million, five hundred four thousand, five hundred forty".