20477101354 has 4 divisors (see below), whose sum is σ = 30715652034. Its totient is φ = 10238550676.

The previous prime is 20477101339. The next prime is 20477101357. The reversal of 20477101354 is 45310177402.

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

It can be written as a sum of positive squares in only one way, i.e., 19789455625 + 687645729 = 140675^2 + 26223^2 .

It is not an unprimeable number, because it can be changed into a prime (20477101357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5119275337 + ... + 5119275340.

Almost surely, 2^20477101354 is an apocalyptic number.

20477101354 is a deficient number, since it is larger than the sum of its proper divisors (10238550680).

20477101354 is a wasteful number, since it uses less digits than its factorization.

20477101354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10238550679.

The product of its (nonzero) digits is 23520, while the sum is 34.

Adding to 20477101354 its reverse (45310177402), we get a palindrome (65787278756).

The spelling of 20477101354 in words is "twenty billion, four hundred seventy-seven million, one hundred one thousand, three hundred fifty-four".