66860401134 has 16 divisors (see below), whose sum is σ = 134970530688. Its totient is φ = 22078512312.

The previous prime is 66860401121. The next prime is 66860401147. The reversal of 66860401134 is 43110406866.

66860401134 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (66860401121) and next prime (66860401147).

It is a junction number, because it is equal to n+sod(n) for n = 66860401092 and 66860401101.

It is a congruent number.

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, 52071322 + ... + 52072605.

It is an arithmetic number, because the mean of its divisors is an integer number (8435658168).

Almost surely, 2^66860401134 is an apocalyptic number.

66860401134 is an abundant number, since it is smaller than the sum of its proper divisors (68110129554).

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

66860401134 is a wasteful number, since it uses less digits than its factorization.

66860401134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104144039.

The product of its (nonzero) digits is 82944, while the sum is 39.

The spelling of 66860401134 in words is "sixty-six billion, eight hundred sixty million, four hundred one thousand, one hundred thirty-four".