42555577066 has 16 divisors (see below), whose sum is σ = 67568407200. Its totient is φ = 20045287728.

The previous prime is 42555577049. The next prime is 42555577091. The reversal of 42555577066 is 66077555524.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3121365 + ... + 3134968.

It is an arithmetic number, because the mean of its divisors is an integer number (4223025450).

Almost surely, 2^42555577066 is an apocalyptic number.

42555577066 is a deficient number, since it is larger than the sum of its proper divisors (25012830134).

42555577066 is a wasteful number, since it uses less digits than its factorization.

42555577066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6256533.

The product of its (nonzero) digits is 8820000, while the sum is 52.

The spelling of 42555577066 in words is "forty-two billion, five hundred fifty-five million, five hundred seventy-seven thousand, sixty-six".