651570480 has 360 divisors, whose sum is σ = 2503287696. Its totient is φ = 157386240.

The previous prime is 651570467. The next prime is 651570487. The reversal of 651570480 is 84075156.

651570480 is a `hidden beast` number, since 6 + 5 + 1 + 570 + 4 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (651570487) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2352102 + ... + 2352378.

Almost surely, 2^651570480 is an apocalyptic number.

651570480 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 651570480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1251643848).

651570480 is an abundant number, since it is smaller than the sum of its proper divisors (1851717216).

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

651570480 is a wasteful number, since it uses less digits than its factorization.

651570480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 651570480 is about 25525.8786332616. The cubic root of 651570480 is about 866.9361909912.

The spelling of 651570480 in words is "six hundred fifty-one million, five hundred seventy thousand, four hundred eighty".