66037988524032 has 544 divisors, whose sum is σ = 235389255475200. Its totient is φ = 17874880561152.

The previous prime is 66037988524009. The next prime is 66037988524061. The reversal of 66037988524032 is 23042588973066.

It is a happy number.

66037988524032 is a `hidden beast` number, since 6 + 6 + 0 + 3 + 79 + 8 + 8 + 524 + 0 + 32 = 666.

It is a super-2 number, since 2×66037988524032² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 235199473 + ... + 235480079.

Almost surely, 2^{66037988524032} 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 66037988524032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117694627737600).

66037988524032 is an abundant number, since it is smaller than the sum of its proper divisors (169351266951168).

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

66037988524032 is an equidigital number, since it uses as much as digits as its factorization.

66037988524032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280674 (or 280638 counting only the distinct ones).

The product of its (nonzero) digits is 104509440, while the sum is 63.

The spelling of 66037988524032 in words is "sixty-six trillion, thirty-seven billion, nine hundred eighty-eight million, five hundred twenty-four thousand, thirty-two".