1656755556423 has 16 divisors (see below), whose sum is σ = 2432348009856. Its totient is φ = 994710215840.

The previous prime is 1656755556403. The next prime is 1656755556427. The reversal of 1656755556423 is 3246555576561.

It is not a de Polignac number, because 1656755556423 - 2³⁶ = 1588036079687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1656755556427) 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, 234597936 + ... + 234604997.

It is an arithmetic number, because the mean of its divisors is an integer number (152021750616).

Almost surely, 2^{1656755556423} is an apocalyptic number.

1656755556423 is a deficient number, since it is larger than the sum of its proper divisors (775592453433).

1656755556423 is a wasteful number, since it uses less digits than its factorization.

1656755556423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469203054.

The product of its digits is 113400000, while the sum is 60.

The spelling of 1656755556423 in words is "one trillion, six hundred fifty-six billion, seven hundred fifty-five million, five hundred fifty-six thousand, four hundred twenty-three".