651090960 has 400 divisors, whose sum is σ = 2495465280. Its totient is φ = 156349440.

The previous prime is 651090959. The next prime is 651090991. The reversal of 651090960 is 69090156.

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

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4970095 + ... + 4970225.

Almost surely, 2^651090960 is an apocalyptic number.

651090960 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 651090960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1247732640).

651090960 is an abundant number, since it is smaller than the sum of its proper divisors (1844374320).

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

651090960 is a wasteful number, since it uses less digits than its factorization.

651090960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 651090960 is about 25516.4840838231. The cubic root of 651090960 is about 866.7234663628.

The spelling of 651090960 in words is "six hundred fifty-one million, ninety thousand, nine hundred sixty".