68668001552 has 10 divisors (see below), whose sum is σ = 133044253038. Its totient is φ = 34334000768.

The previous prime is 68668001551. The next prime is 68668001557. The reversal of 68668001552 is 25510086686.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 68317413376 + 350588176 = 261376^2 + 18724^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68668001497 and 68668001506.

It is not an unprimeable number, because it can be changed into a prime (68668001551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2145875033 + ... + 2145875064.

Almost surely, 2^68668001552 is an apocalyptic number.

It is an amenable number.

68668001552 is a deficient number, since it is larger than the sum of its proper divisors (64376251486).

68668001552 is a wasteful number, since it uses less digits than its factorization.

68668001552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4291750105 (or 4291750099 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 47.

The spelling of 68668001552 in words is "sixty-eight billion, six hundred sixty-eight million, one thousand, five hundred fifty-two".