651266046 has 48 divisors (see below), whose sum is σ = 1462306560. Its totient is φ = 209336400.

The previous prime is 651265991. The next prime is 651266047. The reversal of 651266046 is 640662156.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 651266046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651266047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55821 + ... + 66471.

It is an arithmetic number, because the mean of its divisors is an integer number (30464720).

Almost surely, 2^651266046 is an apocalyptic number.

651266046 is an abundant number, since it is smaller than the sum of its proper divisors (811040514).

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

651266046 is a wasteful number, since it uses less digits than its factorization.

651266046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10781 (or 10778 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 651266046 is about 25519.9146942148. The cubic root of 651266046 is about 866.8011501037.

The spelling of 651266046 in words is "six hundred fifty-one million, two hundred sixty-six thousand, forty-six".