651165696 has 168 divisors, whose sum is σ = 2013264960. Its totient is φ = 207618048.

The previous prime is 651165689. The next prime is 651165707. The reversal of 651165696 is 696561156.

Its product of digits (291600) is a multiple of the sum of its prime factors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28311541 + ... + 28311563.

It is an arithmetic number, because the mean of its divisors is an integer number (11983720).

Almost surely, 2^651165696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 651165696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1006632480).

651165696 is an abundant number, since it is smaller than the sum of its proper divisors (1362099264).

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

651165696 is an frugal number, since it uses more digits than its factorization.

651165696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72 (or 28 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The square root of 651165696 is about 25517.9485068843. The cubic root of 651165696 is about 866.7566276110.

The spelling of 651165696 in words is "six hundred fifty-one million, one hundred sixty-five thousand, six hundred ninety-six".