6651453452 has 72 divisors (see below), whose sum is σ = 14194026000. Its totient is φ = 2716277760.

The previous prime is 6651453433. The next prime is 6651453461. The reversal of 6651453452 is 2543541566.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 335924 + ... + 355172.

It is an arithmetic number, because the mean of its divisors is an integer number (197139250).

Almost surely, 2^6651453452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6651453452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7097013000).

6651453452 is an abundant number, since it is smaller than the sum of its proper divisors (7542572548).

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

6651453452 is a wasteful number, since it uses less digits than its factorization.

6651453452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19351 (or 19342 counting only the distinct ones).

The product of its digits is 432000, while the sum is 41.

The square root of 6651453452 is about 81556.4433506023. The cubic root of 6651453452 is about 1880.6393490919.

The spelling of 6651453452 in words is "six billion, six hundred fifty-one million, four hundred fifty-three thousand, four hundred fifty-two".