651496397334 has 16 divisors (see below), whose sum is σ = 1303005575088. Its totient is φ = 217163335712.

The previous prime is 651496397333. The next prime is 651496397351. The reversal of 651496397334 is 433793694156.

It is a happy number.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651496397333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209764 + ... + 1160600.

It is an arithmetic number, because the mean of its divisors is an integer number (81437848443).

Almost surely, 2^651496397334 is an apocalyptic number.

651496397334 is an abundant number, since it is smaller than the sum of its proper divisors (651509177754).

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

651496397334 is a wasteful number, since it uses less digits than its factorization.

651496397334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065039.

The product of its digits is 44089920, while the sum is 60.

The spelling of 651496397334 in words is "six hundred fifty-one billion, four hundred ninety-six million, three hundred ninety-seven thousand, three hundred thirty-four".