20831661482 has 4 divisors (see below), whose sum is σ = 31247492226. Its totient is φ = 10415830740.

The previous prime is 20831661469. The next prime is 20831661497. The reversal of 20831661482 is 28416613802.

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., 11054209321 + 9777452161 = 105139^2 + 98881^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5207915369 + ... + 5207915372.

Almost surely, 2^20831661482 is an apocalyptic number.

20831661482 is a deficient number, since it is larger than the sum of its proper divisors (10415830744).

20831661482 is a wasteful number, since it uses less digits than its factorization.

20831661482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10415830743.

The product of its (nonzero) digits is 110592, while the sum is 41.

The spelling of 20831661482 in words is "twenty billion, eight hundred thirty-one million, six hundred sixty-one thousand, four hundred eighty-two".