66061026126 has 48 divisors (see below), whose sum is σ = 144173075904. Its totient is φ = 21860701632.

The previous prime is 66061026107. The next prime is 66061026137. The reversal of 66061026126 is 62162016066.

It is a happy number.

66061026126 is a `hidden beast` number, since 6 + 6 + 0 + 610 + 26 + 12 + 6 = 666.

66061026126 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1621680 + ... + 1661916.

It is an arithmetic number, because the mean of its divisors is an integer number (3003605748).

Almost surely, 2^66061026126 is an apocalyptic number.

66061026126 is an abundant number, since it is smaller than the sum of its proper divisors (78112049778).

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

66061026126 is a wasteful number, since it uses less digits than its factorization.

66061026126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40905 (or 40902 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 66061026126 in words is "sixty-six billion, sixty-one million, twenty-six thousand, one hundred twenty-six".