651601000555 has 16 divisors (see below), whose sum is σ = 823996183104. Its totient is φ = 493679612800.

The previous prime is 651601000529. The next prime is 651601000669. The reversal of 651601000555 is 555000106156.

It is a de Polignac number, because none of the positive numbers 2^k-651601000555 is a prime.

It is a super-2 number, since 2×651601000555² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 651601000555.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28038364 + ... + 28061593.

It is an arithmetic number, because the mean of its divisors is an integer number (51499761444).

Almost surely, 2^651601000555 is an apocalyptic number.

651601000555 is a deficient number, since it is larger than the sum of its proper divisors (172395182549).

651601000555 is a wasteful number, since it uses less digits than its factorization.

651601000555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56100086.

The product of its (nonzero) digits is 22500, while the sum is 34.

The spelling of 651601000555 in words is "six hundred fifty-one billion, six hundred one million, five hundred fifty-five", and thus it is an aban number.