66126002811020 has 24 divisors (see below), whose sum is σ = 139358786007168. Its totient is φ = 26356271580800.

The previous prime is 66126002810983. The next prime is 66126002811049. The reversal of 66126002811020 is 2011820062166.

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, 5883090716 + ... + 5883101955.

It is an arithmetic number, because the mean of its divisors is an integer number (5806616083632).

Almost surely, 2^{66126002811020} is an apocalyptic number.

It is an amenable number.

66126002811020 is an abundant number, since it is smaller than the sum of its proper divisors (73232783196148).

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

66126002811020 is a wasteful number, since it uses less digits than its factorization.

66126002811020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11766192961 (or 11766192959 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

Adding to 66126002811020 its reverse (2011820062166), we get a palindrome (68137822873186).

The spelling of 66126002811020 in words is "sixty-six trillion, one hundred twenty-six billion, two million, eight hundred eleven thousand, twenty".