20477077106 has 8 divisors (see below), whose sum is σ = 30718451820. Its totient is φ = 10237593168.

The previous prime is 20477077091. The next prime is 20477077109. The reversal of 20477077106 is 60177077402.

It can be written as a sum of positive squares in 2 ways, for example, as 18434850625 + 2042226481 = 135775^2 + 45191^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20477077109) 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, 445301 + ... + 489128.

Almost surely, 2^20477077106 is an apocalyptic number.

20477077106 is a deficient number, since it is larger than the sum of its proper divisors (10241374714).

20477077106 is a wasteful number, since it uses less digits than its factorization.

20477077106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945388.

The product of its (nonzero) digits is 115248, while the sum is 41.

The spelling of 20477077106 in words is "twenty billion, four hundred seventy-seven million, seventy-seven thousand, one hundred six".