66941354734 has 16 divisors (see below), whose sum is σ = 100717042608. Its totient is φ = 33369095232.

The previous prime is 66941354657. The next prime is 66941354789. The reversal of 66941354734 is 43745314966.

It is a super-2 number, since 2×66941354734² (a number of 22 digits) contains 22 as substring.

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, 1588642 + ... + 1630234.

It is an arithmetic number, because the mean of its divisors is an integer number (6294815163).

Almost surely, 2^66941354734 is an apocalyptic number.

66941354734 is a deficient number, since it is larger than the sum of its proper divisors (33775687874).

66941354734 is a wasteful number, since it uses less digits than its factorization.

66941354734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44019.

The product of its digits is 6531840, while the sum is 52.

The spelling of 66941354734 in words is "sixty-six billion, nine hundred forty-one million, three hundred fifty-four thousand, seven hundred thirty-four".