5656336978 has 8 divisors (see below), whose sum is σ = 8604005760. Its totient is φ = 2788335060.

The previous prime is 5656336943. The next prime is 5656336997. The reversal of 5656336978 is 8796336565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19916538 + ... + 19916821.

It is an arithmetic number, because the mean of its divisors is an integer number (1075500720).

Almost surely, 2^5656336978 is an apocalyptic number.

5656336978 is a deficient number, since it is larger than the sum of its proper divisors (2947668782).

5656336978 is a wasteful number, since it uses less digits than its factorization.

5656336978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39833432.

The product of its digits is 24494400, while the sum is 58.

The square root of 5656336978 is about 75208.6230295436. The cubic root of 5656336978 is about 1781.7431245217.

The spelling of 5656336978 in words is "five billion, six hundred fifty-six million, three hundred thirty-six thousand, nine hundred seventy-eight".