65375526450 has 192 divisors, whose sum is σ = 180588441600. Its totient is φ = 15542841600.

The previous prime is 65375526431. The next prime is 65375526479. The reversal of 65375526450 is 5462557356.

It is a super-2 number, since 2×65375526450² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65375526450.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 51925921 + ... + 51927179.

It is an arithmetic number, because the mean of its divisors is an integer number (940564800).

Almost surely, 2^65375526450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65375526450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90294220800).

65375526450 is an abundant number, since it is smaller than the sum of its proper divisors (115212915150).

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

65375526450 is a wasteful number, since it uses less digits than its factorization.

65375526450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2177 (or 2172 counting only the distinct ones).

The product of its (nonzero) digits is 3780000, while the sum is 48.

The spelling of 65375526450 in words is "sixty-five billion, three hundred seventy-five million, five hundred twenty-six thousand, four hundred fifty".