677221066 has 16 divisors (see below), whose sum is σ = 1076997600. Its totient is φ = 318478608.

The previous prime is 677221031. The next prime is 677221087. The reversal of 677221066 is 660122776.

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, 58825 + ... + 69388.

It is an arithmetic number, because the mean of its divisors is an integer number (67312350).

Almost surely, 2^677221066 is an apocalyptic number.

677221066 is a deficient number, since it is larger than the sum of its proper divisors (399776534).

677221066 is a wasteful number, since it uses less digits than its factorization.

677221066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128373.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 677221066 is about 26023.4714440637. The cubic root of 677221066 is about 878.1664068164.

The spelling of 677221066 in words is "six hundred seventy-seven million, two hundred twenty-one thousand, sixty-six".