173426662066 has 12 divisors (see below), whose sum is σ = 302611828878. Its totient is φ = 74325712272.

The previous prime is 173426662051. The next prime is 173426662139. The reversal of 173426662066 is 660266624371.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 173209954225 + 216707841 = 416185^2 + 14721^2 .

It is a Harshad number since it is a multiple of its sum of digits (49).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 884829811 + ... + 884830006.

Almost surely, 2^173426662066 is an apocalyptic number.

173426662066 is a deficient number, since it is larger than the sum of its proper divisors (129185166812).

173426662066 is a wasteful number, since it uses less digits than its factorization.

173426662066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1769659833 (or 1769659826 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 49.

The spelling of 173426662066 in words is "one hundred seventy-three billion, four hundred twenty-six million, six hundred sixty-two thousand, sixty-six".