68664150370 has 16 divisors (see below), whose sum is σ = 123599430648. Its totient is φ = 27464780160.

The previous prime is 68664150361. The next prime is 68664150377. The reversal of 68664150370 is 7305146686.

It can be written as a sum of positive squares in 4 ways, for example, as 47122423929 + 21541726441 = 217077^2 + 146771^2 .

It is a super-2 number, since 2×68664150370² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68664150370.

It is not an unprimeable number, because it can be changed into a prime (68664150377) 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, 285400 + ... + 467740.

Almost surely, 2^68664150370 is an apocalyptic number.

68664150370 is a deficient number, since it is larger than the sum of its proper divisors (54935280278).

68664150370 is a wasteful number, since it uses less digits than its factorization.

68664150370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220005.

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 68664150370 in words is "sixty-eight billion, six hundred sixty-four million, one hundred fifty thousand, three hundred seventy".