20130087669 has 16 divisors (see below), whose sum is σ = 28295820672. Its totient is φ = 12704237568.

The previous prime is 20130087667. The next prime is 20130087707. The reversal of 20130087669 is 96678003102.

It is a happy number.

It is not a de Polignac number, because 20130087669 - 2¹ = 20130087667 is a prime.

It is a super-2 number, since 2×20130087669² (a number of 21 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 20130087669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130087667) 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, 1497124 + ... + 1510509.

It is an arithmetic number, because the mean of its divisors is an integer number (1768488792).

Almost surely, 2^20130087669 is an apocalyptic number.

It is an amenable number.

20130087669 is a deficient number, since it is larger than the sum of its proper divisors (8165733003).

20130087669 is a wasteful number, since it uses less digits than its factorization.

20130087669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3007756.

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 20130087669 in words is "twenty billion, one hundred thirty million, eighty-seven thousand, six hundred sixty-nine".