66124351540632 has 128 divisors (see below), whose sum is σ = 210894942044160. Its totient is φ = 16775733985920.

The previous prime is 66124351540627. The next prime is 66124351540633. The reversal of 66124351540632 is 23604515342166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66124351540633) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 415985368 + ... + 416144295.

It is an arithmetic number, because the mean of its divisors is an integer number (1647616734720).

Almost surely, 2^{66124351540632} is an apocalyptic number.

It is an amenable number.

66124351540632 is an abundant number, since it is smaller than the sum of its proper divisors (144770590503528).

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

66124351540632 is a wasteful number, since it uses less digits than its factorization.

66124351540632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832129733 (or 832129729 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 48.

Adding to 66124351540632 its reverse (23604515342166), we get a palindrome (89728866882798).

The spelling of 66124351540632 in words is "sixty-six trillion, one hundred twenty-four billion, three hundred fifty-one million, five hundred forty thousand, six hundred thirty-two".