20366421410 has 8 divisors (see below), whose sum is σ = 36659558556. Its totient is φ = 8146568560.

The previous prime is 20366421403. The next prime is 20366421419. The reversal of 20366421410 is 1412466302.

It can be written as a sum of positive squares in 2 ways, for example, as 17218425961 + 3147995449 = 131219^2 + 56107^2 .

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

It is a super-2 number, since 2×20366421410² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20366421419) 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, 1018321061 + ... + 1018321080.

Almost surely, 2^20366421410 is an apocalyptic number.

20366421410 is a deficient number, since it is larger than the sum of its proper divisors (16293137146).

20366421410 is a wasteful number, since it uses less digits than its factorization.

20366421410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036642148.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 20366421410 its reverse (1412466302), we get a palindrome (21778887712).

The spelling of 20366421410 in words is "twenty billion, three hundred sixty-six million, four hundred twenty-one thousand, four hundred ten".