67776331066 has 16 divisors (see below), whose sum is σ = 104633272800. Its totient is φ = 32912414128.

The previous prime is 67776331037. The next prime is 67776331093. The reversal of 67776331066 is 66013367776.

It is a happy number.

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, 3450301 + ... + 3469888.

It is an arithmetic number, because the mean of its divisors is an integer number (6539579550).

Almost surely, 2^67776331066 is an apocalyptic number.

67776331066 is a deficient number, since it is larger than the sum of its proper divisors (36856941734).

67776331066 is a wasteful number, since it uses less digits than its factorization.

67776331066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6920333.

The product of its (nonzero) digits is 4000752, while the sum is 52.

The spelling of 67776331066 in words is "sixty-seven billion, seven hundred seventy-six million, three hundred thirty-one thousand, sixty-six".