66497025111552 has 120 divisors (see below), whose sum is σ = 219331333677456. Its totient is φ = 18999150022656.

The previous prime is 66497025111541. The next prime is 66497025111553. The reversal of 66497025111552 is 25511152079466.

66497025111552 is a `hidden beast` number, since 6 + 6 + 4 + 9 + 70 + 2 + 5 + 1 + 11 + 552 = 666.

66497025111552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66497025111553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1030737603 + ... + 1030802114.

Almost surely, 2^{66497025111552} is an apocalyptic number.

It is an amenable number.

66497025111552 is an abundant number, since it is smaller than the sum of its proper divisors (152834308565904).

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

66497025111552 is a wasteful number, since it uses less digits than its factorization.

66497025111552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2061539748 (or 2061539729 counting only the distinct ones).

The product of its (nonzero) digits is 4536000, while the sum is 54.

The spelling of 66497025111552 in words is "sixty-six trillion, four hundred ninety-seven billion, twenty-five million, one hundred eleven thousand, five hundred fifty-two".