57661628716 has 24 divisors (see below), whose sum is σ = 106812216000. Its totient is φ = 27160807824.

The previous prime is 57661628711. The next prime is 57661628723. The reversal of 57661628716 is 61782616675.

57661628716 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (57661628711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2105686 + ... + 2132893.

It is an arithmetic number, because the mean of its divisors is an integer number (4450509000).

Almost surely, 2^57661628716 is an apocalyptic number.

It is an amenable number.

57661628716 is a deficient number, since it is larger than the sum of its proper divisors (49150587284).

57661628716 is a wasteful number, since it uses less digits than its factorization.

57661628716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4238781 (or 4238779 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 55.

The spelling of 57661628716 in words is "fifty-seven billion, six hundred sixty-one million, six hundred twenty-eight thousand, seven hundred sixteen".