650406145308 has 12 divisors (see below), whose sum is σ = 1517614339080. Its totient is φ = 216802048432.

The previous prime is 650406145303. The next prime is 650406145309. The reversal of 650406145308 is 803541604056.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×650406145308² (a number of 24 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 650406145308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650406145303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27100256043 + ... + 27100256066.

It is an arithmetic number, because the mean of its divisors is an integer number (126467861590).

Almost surely, 2^650406145308 is an apocalyptic number.

It is an amenable number.

650406145308 is an abundant number, since it is smaller than the sum of its proper divisors (867208193772).

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

650406145308 is a wasteful number, since it uses less digits than its factorization.

650406145308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54200512116 (or 54200512114 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 650406145308 in words is "six hundred fifty billion, four hundred six million, one hundred forty-five thousand, three hundred eight".