65137145450 has 48 divisors (see below), whose sum is σ = 131350577400. Its totient is φ = 23889189120.

The previous prime is 65137145449. The next prime is 65137145473. The reversal of 65137145450 is 5454173156.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 2306208529 + 62830936921 = 48023^2 + 250661^2 .

It is a junction number, because it is equal to n+sod(n) for n = 65137145398 and 65137145407.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 239429 + ... + 433128.

Almost surely, 2^65137145450 is an apocalyptic number.

65137145450 is an abundant number, since it is smaller than the sum of its proper divisors (66213431950).

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

65137145450 is a wasteful number, since it uses less digits than its factorization.

65137145450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672731 (or 672726 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 41.

The spelling of 65137145450 in words is "sixty-five billion, one hundred thirty-seven million, one hundred forty-five thousand, four hundred fifty".