20483366377 has 4 divisors (see below), whose sum is σ = 20664635220. Its totient is φ = 20302097536.

The previous prime is 20483366369. The next prime is 20483366399. The reversal of 20483366377 is 77366338402.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1973491776 + 18509874601 = 44424^2 + 136051^2 .

It is a cyclic number.

It is not a de Polignac number, because 20483366377 - 2³ = 20483366369 is a prime.

It is a super-2 number, since 2×20483366377² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20483366377.

It is not an unprimeable number, because it can be changed into a prime (20483366677) 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, 90634252 + ... + 90634477.

It is an arithmetic number, because the mean of its divisors is an integer number (5166158805).

Almost surely, 2^20483366377 is an apocalyptic number.

It is an amenable number.

20483366377 is a deficient number, since it is larger than the sum of its proper divisors (181268843).

20483366377 is a wasteful number, since it uses less digits than its factorization.

20483366377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181268842.

The product of its (nonzero) digits is 3048192, while the sum is 49.

The spelling of 20483366377 in words is "twenty billion, four hundred eighty-three million, three hundred sixty-six thousand, three hundred seventy-seven".