66051012832 has 96 divisors (see below), whose sum is σ = 157719260160. Its totient is φ = 26581063680.

The previous prime is 66051012827. The next prime is 66051012893. The reversal of 66051012832 is 23821015066.

66051012832 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×66051012832² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1651957 + ... + 1691467.

It is an arithmetic number, because the mean of its divisors is an integer number (1642908960).

Almost surely, 2^66051012832 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 66051012832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78859630080).

66051012832 is an abundant number, since it is smaller than the sum of its proper divisors (91668247328).

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

66051012832 is a wasteful number, since it uses less digits than its factorization.

66051012832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39984 (or 39976 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

Adding to 66051012832 its reverse (23821015066), we get a palindrome (89872027898).

The spelling of 66051012832 in words is "sixty-six billion, fifty-one million, twelve thousand, eight hundred thirty-two".