651156655556 has 96 divisors (see below), whose sum is σ = 1333329984000. Its totient is φ = 275109868800.

The previous prime is 651156655529. The next prime is 651156655559. The reversal of 651156655556 is 655556651156.

It is a zygodrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (651156655559) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25685135 + ... + 25710473.

It is an arithmetic number, because the mean of its divisors is an integer number (13888854000).

Almost surely, 2^651156655556 is an apocalyptic number.

It is an amenable number.

651156655556 is an abundant number, since it is smaller than the sum of its proper divisors (682173328444).

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

651156655556 is a wasteful number, since it uses less digits than its factorization.

651156655556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25953 (or 25951 counting only the distinct ones).

The product of its digits is 20250000, while the sum is 56.

The spelling of 651156655556 in words is "six hundred fifty-one billion, one hundred fifty-six million, six hundred fifty-five thousand, five hundred fifty-six".