66142165150 has 48 divisors (see below), whose sum is σ = 124310186496. Its totient is φ = 26181429120.

The previous prime is 66142165139. The next prime is 66142165157. The reversal of 66142165150 is 5156124166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66142165157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2507832 + ... + 2534068.

It is an arithmetic number, because the mean of its divisors is an integer number (2589795552).

Almost surely, 2^66142165150 is an apocalyptic number.

66142165150 is a deficient number, since it is larger than the sum of its proper divisors (58168021346).

66142165150 is a wasteful number, since it uses less digits than its factorization.

66142165150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26773 (or 26768 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 66142165150 in words is "sixty-six billion, one hundred forty-two million, one hundred sixty-five thousand, one hundred fifty".