651261202016 has 24 divisors (see below), whose sum is σ = 1301307368760. Its totient is φ = 320770441728.

The previous prime is 651261202003. The next prime is 651261202057. The reversal of 651261202016 is 610202162156.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151877801 + ... + 151882088.

It is an arithmetic number, because the mean of its divisors is an integer number (54221140365).

Almost surely, 2^651261202016 is an apocalyptic number.

It is an amenable number.

651261202016 is a deficient number, since it is larger than the sum of its proper divisors (650046166744).

651261202016 is a wasteful number, since it uses less digits than its factorization.

651261202016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303759966 (or 303759958 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 651261202016 in words is "six hundred fifty-one billion, two hundred sixty-one million, two hundred two thousand, sixteen".