20007418037669 has 8 divisors (see below), whose sum is σ = 20056572810360. Its totient is φ = 19958320324800.

The previous prime is 20007418037657. The next prime is 20007418037683. The reversal of 20007418037669 is 96673081470002.

It can be written as a sum of positive squares in 4 ways, for example, as 9281223180100 + 10726194857569 = 3046510^2 + 3275087^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20007418037669 - 2⁸ = 20007418037413 is a prime.

It is a super-2 number, since 2×20007418037669² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20007418037669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20007418037699) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13562774 + ... + 14965415.

It is an arithmetic number, because the mean of its divisors is an integer number (2507071601295).

Almost surely, 2^{20007418037669} is an apocalyptic number.

It is an amenable number.

20007418037669 is a deficient number, since it is larger than the sum of its proper divisors (49154772691).

20007418037669 is a wasteful number, since it uses less digits than its factorization.

20007418037669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28529911.

The product of its (nonzero) digits is 3048192, while the sum is 53.

The spelling of 20007418037669 in words is "twenty trillion, seven billion, four hundred eighteen million, thirty-seven thousand, six hundred sixty-nine".