20259172114 has 4 divisors (see below), whose sum is σ = 30388758174. Its totient is φ = 10129586056.

The previous prime is 20259172103. The next prime is 20259172121. The reversal of 20259172114 is 41127195202.

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., 13281410025 + 6977762089 = 115245^2 + 83533^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20259172114.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5064793027 + ... + 5064793030.

Almost surely, 2^20259172114 is an apocalyptic number.

20259172114 is a deficient number, since it is larger than the sum of its proper divisors (10129586060).

20259172114 is a wasteful number, since it uses less digits than its factorization.

20259172114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10129586059.

The product of its (nonzero) digits is 10080, while the sum is 34.

The spelling of 20259172114 in words is "twenty billion, two hundred fifty-nine million, one hundred seventy-two thousand, one hundred fourteen".