1656160561347 has 16 divisors (see below), whose sum is σ = 2413531901952. Its totient is φ = 1005638290560.

The previous prime is 1656160561333. The next prime is 1656160561379. The reversal of 1656160561347 is 7431650616561.

It is not a de Polignac number, because 1656160561347 - 2⁴ = 1656160561331 is a prime.

It is a super-2 number, since 2×1656160561347² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 1656160561347.

It is not an unprimeable number, because it can be changed into a prime (1656161561347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 523768363 + ... + 523771524.

It is an arithmetic number, because the mean of its divisors is an integer number (150845743872).

Almost surely, 2^{1656160561347} is an apocalyptic number.

1656160561347 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1656160561347 is a deficient number, since it is larger than the sum of its proper divisors (757371340605).

1656160561347 is a wasteful number, since it uses less digits than its factorization.

1656160561347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047539938.

The product of its (nonzero) digits is 2721600, while the sum is 51.

The spelling of 1656160561347 in words is "one trillion, six hundred fifty-six billion, one hundred sixty million, five hundred sixty-one thousand, three hundred forty-seven".