1656456273552 has 20 divisors (see below), whose sum is σ = 4279178706800. Its totient is φ = 552152091168.

The previous prime is 1656456273551. The next prime is 1656456273581. The reversal of 1656456273552 is 2553726546561.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1656456273492 and 1656456273501.

It is not an unprimeable number, because it can be changed into a prime (1656456273551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17254752802 + ... + 17254752897.

It is an arithmetic number, because the mean of its divisors is an integer number (213958935340).

Almost surely, 2^{1656456273552} is an apocalyptic number.

1656456273552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1656456273552 is an abundant number, since it is smaller than the sum of its proper divisors (2622722433248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1656456273552 is a wasteful number, since it uses less digits than its factorization.

1656456273552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34509505710 (or 34509505704 counting only the distinct ones).

The product of its digits is 45360000, while the sum is 57.

The spelling of 1656456273552 in words is "one trillion, six hundred fifty-six billion, four hundred fifty-six million, two hundred seventy-three thousand, five hundred fifty-two".