65142563450 has 24 divisors (see below), whose sum is σ = 121184726940. Its totient is φ = 26052819200.

The previous prime is 65142563429. The next prime is 65142563471. The reversal of 65142563450 is 5436524156.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (65142563429) and next prime (65142563471).

It can be written as a sum of positive squares in 6 ways, for example, as 935564569 + 64206998881 = 30587^2 + 253391^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 65142563398 and 65142563407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 217490 + ... + 421410.

Almost surely, 2^65142563450 is an apocalyptic number.

65142563450 is a deficient number, since it is larger than the sum of its proper divisors (56042163490).

65142563450 is a wasteful number, since it uses less digits than its factorization.

65142563450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210322 (or 210317 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 65142563450 in words is "sixty-five billion, one hundred forty-two million, five hundred sixty-three thousand, four hundred fifty".