56635766542 has 16 divisors (see below), whose sum is σ = 89429880960. Its totient is φ = 26825972472.

The previous prime is 56635766531. The next prime is 56635766569. The reversal of 56635766542 is 24566753665.

It is a super-2 number, since 2×56635766542² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 966493 + ... + 1023415.

It is an arithmetic number, because the mean of its divisors is an integer number (5589367560).

Almost surely, 2^56635766542 is an apocalyptic number.

56635766542 is a deficient number, since it is larger than the sum of its proper divisors (32794114418).

56635766542 is a wasteful number, since it uses less digits than its factorization.

56635766542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83127.

The product of its digits is 27216000, while the sum is 55.

The spelling of 56635766542 in words is "fifty-six billion, six hundred thirty-five million, seven hundred sixty-six thousand, five hundred forty-two".