1681202225272 has 16 divisors (see below), whose sum is σ = 3152272381560. Its totient is φ = 840596256864.

The previous prime is 1681202225201. The next prime is 1681202225281. The reversal of 1681202225272 is 2725222021861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1170778 + ... + 2175574.

Almost surely, 2^{1681202225272} is an apocalyptic number.

It is an amenable number.

1681202225272 is a deficient number, since it is larger than the sum of its proper divisors (1471070156288).

1681202225272 is a wasteful number, since it uses less digits than its factorization.

1681202225272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213950 (or 1213946 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 1681202225272 in words is "one trillion, six hundred eighty-one billion, two hundred two million, two hundred twenty-five thousand, two hundred seventy-two".