20434556270 has 8 divisors (see below), whose sum is σ = 36782201304. Its totient is φ = 8173822504.

The previous prime is 20434556269. The next prime is 20434556279. The reversal of 20434556270 is 7265543402.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20434556279) 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, 1021727804 + ... + 1021727823.

It is an arithmetic number, because the mean of its divisors is an integer number (4597775163).

Almost surely, 2^20434556270 is an apocalyptic number.

20434556270 is a deficient number, since it is larger than the sum of its proper divisors (16347645034).

20434556270 is a wasteful number, since it uses less digits than its factorization.

20434556270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043455634.

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

The spelling of 20434556270 in words is "twenty billion, four hundred thirty-four million, five hundred fifty-six thousand, two hundred seventy".