20670524354 has 4 divisors (see below), whose sum is σ = 31005786534. Its totient is φ = 10335262176.

The previous prime is 20670524351. The next prime is 20670524359. The reversal of 20670524354 is 45342507602.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16933036129 + 3737488225 = 130127^2 + 61135^2 .

It is not an unprimeable number, because it can be changed into a prime (20670524351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5167631087 + ... + 5167631090.

Almost surely, 2^20670524354 is an apocalyptic number.

20670524354 is a deficient number, since it is larger than the sum of its proper divisors (10335262180).

20670524354 is a wasteful number, since it uses less digits than its factorization.

20670524354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10335262179.

The product of its (nonzero) digits is 201600, while the sum is 38.

The spelling of 20670524354 in words is "twenty billion, six hundred seventy million, five hundred twenty-four thousand, three hundred fifty-four".