66142337101 has 4 divisors (see below), whose sum is σ = 69018090912. Its totient is φ = 63266583292.

The previous prime is 66142337083. The next prime is 66142337111. The reversal of 66142337101 is 10173324166.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 66142337101 - 2³¹ = 63994853453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66142337111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1437876871 + ... + 1437876916.

It is an arithmetic number, because the mean of its divisors is an integer number (17254522728).

Almost surely, 2^66142337101 is an apocalyptic number.

It is an amenable number.

66142337101 is a deficient number, since it is larger than the sum of its proper divisors (2875753811).

66142337101 is a wasteful number, since it uses less digits than its factorization.

66142337101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2875753810.

The product of its (nonzero) digits is 18144, while the sum is 34.

The spelling of 66142337101 in words is "sixty-six billion, one hundred forty-two million, three hundred thirty-seven thousand, one hundred one".