650661070 has 32 divisors (see below), whose sum is σ = 1188432000. Its totient is φ = 256450080.

The previous prime is 650661049. The next prime is 650661071. The reversal of 650661070 is 70166056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650661071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413385 + ... + 414955.

It is an arithmetic number, because the mean of its divisors is an integer number (37138500).

Almost surely, 2^650661070 is an apocalyptic number.

650661070 is a deficient number, since it is larger than the sum of its proper divisors (537770930).

650661070 is a wasteful number, since it uses less digits than its factorization.

650661070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 650661070 is about 25508.0589226229. The cubic root of 650661070 is about 866.5326697832.

It can be divided in two parts, 6506 and 61070, that added together give a palindrome (67576).

The spelling of 650661070 in words is "six hundred fifty million, six hundred sixty-one thousand, seventy".