651467616 has 48 divisors (see below), whose sum is σ = 1739102400. Its totient is φ = 213473408.

The previous prime is 651467567. The next prime is 651467623. The reversal of 651467616 is 616764156.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

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, 51846 + ... + 63173.

It is an arithmetic number, because the mean of its divisors is an integer number (36231300).

Almost surely, 2^651467616 is an apocalyptic number.

It is an amenable number.

651467616 is an abundant number, since it is smaller than the sum of its proper divisors (1087634784).

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

651467616 is a wasteful number, since it uses less digits than its factorization.

651467616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115091 (or 115083 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 651467616 is about 25523.8636573697. The cubic root of 651467616 is about 866.8905672661.

The spelling of 651467616 in words is "six hundred fifty-one million, four hundred sixty-seven thousand, six hundred sixteen".