66055641602634 has 32 divisors (see below), whose sum is σ = 150757620479040. Its totient is φ = 21423451329936.

The previous prime is 66055641602623. The next prime is 66055641602653. The reversal of 66055641602634 is 43620614655066.

66055641602634 is a `hidden beast` number, since 6 + 6 + 0 + 5 + 564 + 16 + 0 + 2 + 63 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16530438844 + ... + 16530442839.

It is an arithmetic number, because the mean of its divisors is an integer number (4711175639970).

Almost surely, 2^{66055641602634} is an apocalyptic number.

66055641602634 is an abundant number, since it is smaller than the sum of its proper divisors (84701978876406).

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

66055641602634 is a wasteful number, since it uses less digits than its factorization.

66055641602634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33060881731 (or 33060881725 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 54.

The spelling of 66055641602634 in words is "sixty-six trillion, fifty-five billion, six hundred forty-one million, six hundred two thousand, six hundred thirty-four".