20366421374 has 16 divisors (see below), whose sum is σ = 33064936800. Its totient is φ = 9352648800.

The previous prime is 20366421343. The next prime is 20366421389. The reversal of 20366421374 is 47312466302.

It is a super-2 number, since 2×20366421374² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1962977 + ... + 1973324.

It is an arithmetic number, because the mean of its divisors is an integer number (2066558550).

Almost surely, 2^20366421374 is an apocalyptic number.

20366421374 is a deficient number, since it is larger than the sum of its proper divisors (12698515426).

20366421374 is a wasteful number, since it uses less digits than its factorization.

20366421374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3936515.

The product of its (nonzero) digits is 145152, while the sum is 38.

Adding to 20366421374 its reverse (47312466302), we get a palindrome (67678887676).

The spelling of 20366421374 in words is "twenty billion, three hundred sixty-six million, four hundred twenty-one thousand, three hundred seventy-four".