6625641402 has 96 divisors (see below), whose sum is σ = 15103355904. Its totient is φ = 2176761600.

The previous prime is 6625641383. The next prime is 6625641419. The reversal of 6625641402 is 2041465266.

6625641402 is a `hidden beast` number, since 6 + 6 + 2 + 5 + 641 + 4 + 0 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12716902 + ... + 12717422.

It is an arithmetic number, because the mean of its divisors is an integer number (157326624).

Almost surely, 2^6625641402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6625641402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7551677952).

6625641402 is an abundant number, since it is smaller than the sum of its proper divisors (8477714502).

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

6625641402 is a wasteful number, since it uses less digits than its factorization.

6625641402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866 (or 854 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 6625641402 is about 81398.0429863028. The cubic root of 6625641402 is about 1878.2034862036.

The spelling of 6625641402 in words is "six billion, six hundred twenty-five million, six hundred forty-one thousand, four hundred two".