65678263002 has 72 divisors (see below), whose sum is σ = 156673936692. Its totient is φ = 19869632640.

The previous prime is 65678262967. The next prime is 65678263003. The reversal of 65678263002 is 20036287656.

It is a happy number.

65678263002 is a `hidden beast` number, since 6 + 5 + 6 + 7 + 8 + 2 + 630 + 0 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 58942613961 + 6735649041 = 242781^2 + 82071^2 .

It is not an unprimeable number, because it can be changed into a prime (65678263003) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1310518 + ... + 1359710.

Almost surely, 2^65678263002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65678263002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78336968346).

65678263002 is an abundant number, since it is smaller than the sum of its proper divisors (90995673690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65678263002 is a wasteful number, since it uses less digits than its factorization.

65678263002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49836 (or 49822 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 65678263002 in words is "sixty-five billion, six hundred seventy-eight million, two hundred sixty-three thousand, two".