650945655 has 48 divisors (see below), whose sum is σ = 1180370880. Its totient is φ = 331229184.

The previous prime is 650945627. The next prime is 650945663. The reversal of 650945655 is 556549056.

It is not a de Polignac number, because 650945655 - 2⁶ = 650945591 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 650945655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 700231 + ... + 701159.

It is an arithmetic number, because the mean of its divisors is an integer number (24591060).

Almost surely, 2^650945655 is an apocalyptic number.

650945655 is a deficient number, since it is larger than the sum of its proper divisors (529425225).

650945655 is a wasteful number, since it uses less digits than its factorization.

650945655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640 (or 1637 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 45.

The square root of 650945655 is about 25513.6366478791. The cubic root of 650945655 is about 866.6589855499.

The spelling of 650945655 in words is "six hundred fifty million, nine hundred forty-five thousand, six hundred fifty-five".