65525974026 has 32 divisors (see below), whose sum is σ = 132123700800. Its totient is φ = 21663995520.

The previous prime is 65525974013. The next prime is 65525974081. The reversal of 65525974026 is 62047952556.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 65525974026.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 339366 + ... + 496206.

It is an arithmetic number, because the mean of its divisors is an integer number (4128865650).

Almost surely, 2^65525974026 is an apocalyptic number.

65525974026 is an abundant number, since it is smaller than the sum of its proper divisors (66597726774).

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

65525974026 is a wasteful number, since it uses less digits than its factorization.

65525974026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157414.

The product of its (nonzero) digits is 4536000, while the sum is 51.

The spelling of 65525974026 in words is "sixty-five billion, five hundred twenty-five million, nine hundred seventy-four thousand, twenty-six".