1656734528164 has 27 divisors (see below), whose sum is σ = 2962501187457. Its totient is φ = 810683220144.

The previous prime is 1656734528093. The next prime is 1656734528177. The reversal of 1656734528164 is 4618254376561.

The square root of 1656734528164 is 1287142.

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., 1654799232100 + 1935296064 = 1286390^2 + 43992^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1656734528099 and 1656734528108.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 120984502 + ... + 120998194.

Almost surely, 2^{1656734528164} is an apocalyptic number.

1656734528164 is the 1287142-nd square number.

It is an amenable number.

1656734528164 is a deficient number, since it is larger than the sum of its proper divisors (1305766659293).

1656734528164 is an frugal number, since it uses more digits than its factorization.

1656734528164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27484 (or 13742 counting only the distinct ones).

The product of its digits is 29030400, while the sum is 58.

The spelling of 1656734528164 in words is "one trillion, six hundred fifty-six billion, seven hundred thirty-four million, five hundred twenty-eight thousand, one hundred sixty-four".