651166350 has 48 divisors (see below), whose sum is σ = 1626562560. Its totient is φ = 172389600.

The previous prime is 651166339. The next prime is 651166381. The reversal of 651166350 is 53661156.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5235 + ... + 36465.

It is an arithmetic number, because the mean of its divisors is an integer number (33886720).

Almost surely, 2^651166350 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 651166350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (813281280).

651166350 is an abundant number, since it is smaller than the sum of its proper divisors (975396210).

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

651166350 is a wasteful number, since it uses less digits than its factorization.

651166350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31385 (or 31380 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 651166350 is about 25517.9613213909. The cubic root of 651166350 is about 866.7569177874.

The spelling of 651166350 in words is "six hundred fifty-one million, one hundred sixty-six thousand, three hundred fifty".