651362166 has 120 divisors (see below), whose sum is σ = 1756953744. Its totient is φ = 170838720.

The previous prime is 651362149. The next prime is 651362197. The reversal of 651362166 is 661263156.

It is a self number, because there is not a number n which added to its sum of digits gives 651362166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 3598596 + ... + 3598776.

Almost surely, 2^651362166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 651362166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (878476872).

651362166 is an abundant number, since it is smaller than the sum of its proper divisors (1105591578).

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

651362166 is a wasteful number, since it uses less digits than its factorization.

651362166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 206 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 651362166 is about 25521.7978598687. The cubic root of 651362166 is about 866.8437915754.

The spelling of 651362166 in words is "six hundred fifty-one million, three hundred sixty-two thousand, one hundred sixty-six".