1995625227556 has 27 divisors (see below), whose sum is σ = 3709949683699. Its totient is φ = 939095151488.

The previous prime is 1995625227523. The next prime is 1995625227569. The reversal of 1995625227556 is 6557225265991.

The square root of 1995625227556 is 1412666.

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

It can be written as a sum of positive squares in 4 ways, for example, as 176946422500 + 1818678805056 = 420650^2 + 1348584^2 .

It is a Duffinian number.

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, 48009870 + ... + 48051418.

Almost surely, 2^{1995625227556} is an apocalyptic number.

1995625227556 is the 1412666-th square number.

It is an amenable number.

1995625227556 is a deficient number, since it is larger than the sum of its proper divisors (1714324456143).

1995625227556 is an frugal number, since it uses more digits than its factorization.

1995625227556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83136 (or 41568 counting only the distinct ones).

The product of its digits is 102060000, while the sum is 64.

Multiplying 1995625227556 by its sum of digits (64), we get a square (127720014563584 = 11301328²).

The spelling of 1995625227556 in words is "one trillion, nine hundred ninety-five billion, six hundred twenty-five million, two hundred twenty-seven thousand, five hundred fifty-six".