20740066814 has 4 divisors (see below), whose sum is σ = 31110100224. Its totient is φ = 10370033406.

The previous prime is 20740066801. The next prime is 20740066817. The reversal of 20740066814 is 41866004702.

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

It is a super-2 number, since 2×20740066814² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20740066817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5185016702 + ... + 5185016705.

It is an arithmetic number, because the mean of its divisors is an integer number (7777525056).

Almost surely, 2^20740066814 is an apocalyptic number.

20740066814 is a deficient number, since it is larger than the sum of its proper divisors (10370033410).

20740066814 is a wasteful number, since it uses less digits than its factorization.

20740066814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10370033409.

The product of its (nonzero) digits is 64512, while the sum is 38.

The spelling of 20740066814 in words is "twenty billion, seven hundred forty million, sixty-six thousand, eight hundred fourteen".