66047701144 has 16 divisors (see below), whose sum is σ = 128109765600. Its totient is φ = 31885096992.

The previous prime is 66047701129. The next prime is 66047701183. The reversal of 66047701144 is 44110774066.

It is a junction number, because it is equal to n+sod(n) for n = 66047701097 and 66047701106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142343952 + ... + 142344415.

It is an arithmetic number, because the mean of its divisors is an integer number (8006860350).

Almost surely, 2^66047701144 is an apocalyptic number.

It is an amenable number.

66047701144 is a deficient number, since it is larger than the sum of its proper divisors (62062064456).

66047701144 is a wasteful number, since it uses less digits than its factorization.

66047701144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284688402 (or 284688398 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 66047701144 in words is "sixty-six billion, forty-seven million, seven hundred one thousand, one hundred forty-four".