1656487406116 has 9 divisors (see below), whose sum is σ = 2898857465371. Its totient is φ = 828242416012.

The previous prime is 1656487406113. The next prime is 1656487406153. The reversal of 1656487406116 is 6116047846561.

The square root of 1656487406116 is 1287046.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1656487406113) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2252331 + ... + 2895853.

Almost surely, 2^{1656487406116} is an apocalyptic number.

1656487406116 is the 1287046-th square number.

It is an amenable number.

1656487406116 is a deficient number, since it is larger than the sum of its proper divisors (1242370059255).

1656487406116 is an frugal number, since it uses more digits than its factorization.

1656487406116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287050 (or 643525 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 55.

The spelling of 1656487406116 in words is "one trillion, six hundred fifty-six billion, four hundred eighty-seven million, four hundred six thousand, one hundred sixteen".