650661022 has 16 divisors (see below), whose sum is σ = 1076684400. Its totient is φ = 292431040.

The previous prime is 650660999. The next prime is 650661029. The reversal of 650661022 is 220166056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650661029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164197 + ... + 168112.

It is an arithmetic number, because the mean of its divisors is an integer number (67292775).

Almost surely, 2^650661022 is an apocalyptic number.

650661022 is a deficient number, since it is larger than the sum of its proper divisors (426023378).

650661022 is a wasteful number, since it uses less digits than its factorization.

650661022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332411.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 650661022 is about 25508.0579817437. The cubic root of 650661022 is about 866.5326484749.

It can be divided in two parts, 6506 and 61022, that added together give a triangular number (67528 = T₃₆₇).

The spelling of 650661022 in words is "six hundred fifty million, six hundred sixty-one thousand, twenty-two".