20611662010 has 16 divisors (see below), whose sum is σ = 37106525736. Its totient is φ = 8243435008.

The previous prime is 20611662007. The next prime is 20611662041. The reversal of 20611662010 is 1026611602.

It can be written as a sum of positive squares in 4 ways, for example, as 16680497409 + 3931164601 = 129153^2 + 62699^2 .

It is a super-3 number, since 3×20611662010³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 81727 + ... + 218866.

Almost surely, 2^20611662010 is an apocalyptic number.

20611662010 is a deficient number, since it is larger than the sum of its proper divisors (16494863726).

20611662010 is a wasteful number, since it uses less digits than its factorization.

20611662010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307457.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 20611662010 in words is "twenty billion, six hundred eleven million, six hundred sixty-two thousand, ten".