6651245516 has 24 divisors (see below), whose sum is σ = 11815968864. Its totient is φ = 3275596800.

The previous prime is 6651245473. The next prime is 6651245527. The reversal of 6651245516 is 6155421566.

It is a super-3 number, since 3×6651245516³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a zygodrome in base 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35321 + ... + 120623.

It is an arithmetic number, because the mean of its divisors is an integer number (492332036).

Almost surely, 2^6651245516 is an apocalyptic number.

It is an amenable number.

6651245516 is a deficient number, since it is larger than the sum of its proper divisors (5164723348).

6651245516 is a wasteful number, since it uses less digits than its factorization.

6651245516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85601 (or 85599 counting only the distinct ones).

The product of its digits is 216000, while the sum is 41.

The square root of 6651245516 is about 81555.1685425271. The cubic root of 6651245516 is about 1880.6197515357.

The spelling of 6651245516 in words is "six billion, six hundred fifty-one million, two hundred forty-five thousand, five hundred sixteen".