65632072542 has 16 divisors (see below), whose sum is σ = 131266656000. Its totient is φ = 21876939032.

The previous prime is 65632072507. The next prime is 65632072553. The reversal of 65632072542 is 24527023656.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 65632072494 and 65632072503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 558373 + ... + 665615.

It is an arithmetic number, because the mean of its divisors is an integer number (8204166000).

Almost surely, 2^65632072542 is an apocalyptic number.

65632072542 is an abundant number, since it is smaller than the sum of its proper divisors (65634583458).

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

65632072542 is a wasteful number, since it uses less digits than its factorization.

65632072542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209247.

The product of its (nonzero) digits is 604800, while the sum is 42.

The spelling of 65632072542 in words is "sixty-five billion, six hundred thirty-two million, seventy-two thousand, five hundred forty-two".