651223003260 has 192 divisors, whose sum is σ = 1946455805952. Its totient is φ = 162301353984.

The previous prime is 651223003259. The next prime is 651223003331. The reversal of 651223003260 is 62300322156.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 40010484 + ... + 40026756.

It is an arithmetic number, because the mean of its divisors is an integer number (10137790656).

Almost surely, 2^651223003260 is an apocalyptic number.

651223003260 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 651223003260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (973227902976).

651223003260 is an abundant number, since it is smaller than the sum of its proper divisors (1295232802692).

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

651223003260 is a wasteful number, since it uses less digits than its factorization.

651223003260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16972 (or 16970 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The spelling of 651223003260 in words is "six hundred fifty-one billion, two hundred twenty-three million, three thousand, two hundred sixty".