20611518060 has 96 divisors (see below), whose sum is σ = 69428298240. Its totient is φ = 4463244288.

The previous prime is 20611518043. The next prime is 20611518107. The reversal of 20611518060 is 6081511602.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1283469 + ... + 1299428.

It is an arithmetic number, because the mean of its divisors is an integer number (723211440).

Almost surely, 2^20611518060 is an apocalyptic number.

20611518060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20611518060 is an abundant number, since it is smaller than the sum of its proper divisors (48816780180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20611518060 is a wasteful number, since it uses less digits than its factorization.

20611518060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2582935 (or 2582933 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The spelling of 20611518060 in words is "twenty billion, six hundred eleven million, five hundred eighteen thousand, sixty".