2067654188356 has 27 divisors (see below), whose sum is σ = 3629536293117. Its totient is φ = 1030653573840.

The previous prime is 2067654188317. The next prime is 2067654188357. The reversal of 2067654188356 is 6538814567602.

It is a happy number.

The square root of 2067654188356 is 1437934.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1385682122500 + 681972065856 = 1177150^2 + 825816^2 .

It is a super-2 number, since 2×2067654188356² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2067654188294 and 2067654188303.

It is not an unprimeable number, because it can be changed into a prime (2067654188357) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1141718691 + ... + 1141720501.

Almost surely, 2^{2067654188356} is an apocalyptic number.

2067654188356 is the 1437934-th square number.

It is an amenable number.

2067654188356 is a deficient number, since it is larger than the sum of its proper divisors (1561882104761).

2067654188356 is an frugal number, since it uses more digits than its factorization.

2067654188356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4420 (or 2210 counting only the distinct ones).

The product of its (nonzero) digits is 58060800, while the sum is 61.

The spelling of 2067654188356 in words is "two trillion, sixty-seven billion, six hundred fifty-four million, one hundred eighty-eight thousand, three hundred fifty-six".