20515554230 has 8 divisors (see below), whose sum is σ = 36927997632. Its totient is φ = 8206221688.

The previous prime is 20515554229. The next prime is 20515554251. The reversal of 20515554230 is 3245551502.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1025777702 + ... + 1025777721.

It is an arithmetic number, because the mean of its divisors is an integer number (4615999704).

Almost surely, 2^20515554230 is an apocalyptic number.

20515554230 is a deficient number, since it is larger than the sum of its proper divisors (16412443402).

20515554230 is a wasteful number, since it uses less digits than its factorization.

20515554230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051555430.

The product of its (nonzero) digits is 30000, while the sum is 32.

The spelling of 20515554230 in words is "twenty billion, five hundred fifteen million, five hundred fifty-four thousand, two hundred thirty".