66142540610974 has 32 divisors (see below), whose sum is σ = 107752985856000. Its totient is φ = 30350424203424.

The previous prime is 66142540610941. The next prime is 66142540610987. The reversal of 66142540610974 is 47901604524166.

It is a super-3 number, since 3×66142540610974³ (a number of 42 digits) contains 333 as substring.

It is a congruent number.

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, 207697734 + ... + 208015945.

It is an arithmetic number, because the mean of its divisors is an integer number (3367280808000).

Almost surely, 2^{66142540610974} is an apocalyptic number.

66142540610974 is a deficient number, since it is larger than the sum of its proper divisors (41610445245026).

66142540610974 is a wasteful number, since it uses less digits than its factorization.

66142540610974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415713832.

The product of its (nonzero) digits is 8709120, while the sum is 55.

The spelling of 66142540610974 in words is "sixty-six trillion, one hundred forty-two billion, five hundred forty million, six hundred ten thousand, nine hundred seventy-four".