66602989152 has 192 divisors, whose sum is σ = 222597365760. Its totient is φ = 18979080192.

The previous prime is 66602989133. The next prime is 66602989163. The reversal of 66602989152 is 25198920666.

It is a happy number.

66602989152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2302008 + ... + 2330760.

It is an arithmetic number, because the mean of its divisors is an integer number (1159361280).

Almost surely, 2^66602989152 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 66602989152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111298682880).

66602989152 is an abundant number, since it is smaller than the sum of its proper divisors (155994376608).

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

66602989152 is a wasteful number, since it uses less digits than its factorization.

66602989152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29162 (or 29148 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The spelling of 66602989152 in words is "sixty-six billion, six hundred two million, nine hundred eighty-nine thousand, one hundred fifty-two".