20524160489 has 4 divisors (see below), whose sum is σ = 23456183424. Its totient is φ = 17592137556.

The previous prime is 20524160473. The next prime is 20524160491. The reversal of 20524160489 is 98406142502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20524160489 - 2⁴ = 20524160473 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20524160429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1466011457 + ... + 1466011470.

It is an arithmetic number, because the mean of its divisors is an integer number (5864045856).

Almost surely, 2^20524160489 is an apocalyptic number.

It is an amenable number.

20524160489 is a deficient number, since it is larger than the sum of its proper divisors (2932022935).

20524160489 is an equidigital number, since it uses as much as digits as its factorization.

20524160489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2932022934.

The product of its (nonzero) digits is 138240, while the sum is 41.

The spelling of 20524160489 in words is "twenty billion, five hundred twenty-four million, one hundred sixty thousand, four hundred eighty-nine".