66122077142 has 32 divisors (see below), whose sum is σ = 112203097344. Its totient is φ = 28959228000.

The previous prime is 66122077129. The next prime is 66122077171. The reversal of 66122077142 is 24177022166.

It is a junction number, because it is equal to n+sod(n) for n = 66122077096 and 66122077105.

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, 310484 + ... + 478167.

It is an arithmetic number, because the mean of its divisors is an integer number (3506346792).

Almost surely, 2^66122077142 is an apocalyptic number.

66122077142 is a deficient number, since it is larger than the sum of its proper divisors (46081020202).

66122077142 is a wasteful number, since it uses less digits than its factorization.

66122077142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788804.

The product of its (nonzero) digits is 56448, while the sum is 38.

The spelling of 66122077142 in words is "sixty-six billion, one hundred twenty-two million, seventy-seven thousand, one hundred forty-two".