677161657066 has 32 divisors (see below), whose sum is σ = 1079822223360. Its totient is φ = 317587147776.

The previous prime is 677161657049. The next prime is 677161657201. The reversal of 677161657066 is 660756161776.

It is a super-3 number, since 3×677161657066³ (a number of 36 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 677161657066.

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, 1824090 + ... + 2163706.

It is an arithmetic number, because the mean of its divisors is an integer number (33744444480).

Almost surely, 2^677161657066 is an apocalyptic number.

677161657066 is a deficient number, since it is larger than the sum of its proper divisors (402660566294).

677161657066 is a wasteful number, since it uses less digits than its factorization.

677161657066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340158.

The product of its (nonzero) digits is 13335840, while the sum is 58.

The spelling of 677161657066 in words is "six hundred seventy-seven billion, one hundred sixty-one million, six hundred fifty-seven thousand, sixty-six".