656411454542 has 16 divisors (see below), whose sum is σ = 990303874560. Its totient is φ = 326310852408.

The previous prime is 656411454539. The next prime is 656411454583. The reversal of 656411454542 is 245454114656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1766153 + ... + 2105259.

It is an arithmetic number, because the mean of its divisors is an integer number (61893992160).

Almost surely, 2^656411454542 is an apocalyptic number.

656411454542 is a deficient number, since it is larger than the sum of its proper divisors (333892420018).

656411454542 is a wasteful number, since it uses less digits than its factorization.

656411454542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344695.

The product of its digits is 2304000, while the sum is 47.

The spelling of 656411454542 in words is "six hundred fifty-six billion, four hundred eleven million, four hundred fifty-four thousand, five hundred forty-two".