651610011551 has 8 divisors (see below), whose sum is σ = 667557046464. Its totient is φ = 635665553280.

The previous prime is 651610011511. The next prime is 651610011659. The reversal of 651610011551 is 155110016156.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 651610011551 - 2¹⁸ = 651609749407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651610011511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127175 + ... + 1148648.

It is an arithmetic number, because the mean of its divisors is an integer number (83444630808).

Almost surely, 2^651610011551 is an apocalyptic number.

651610011551 is a deficient number, since it is larger than the sum of its proper divisors (15947034913).

651610011551 is a wasteful number, since it uses less digits than its factorization.

651610011551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288321.

The product of its (nonzero) digits is 4500, while the sum is 32.

The spelling of 651610011551 in words is "six hundred fifty-one billion, six hundred ten million, eleven thousand, five hundred fifty-one".