66152300481 has 64 divisors (see below), whose sum is σ = 108034790400. Its totient is φ = 39831533568.

The previous prime is 66152300449. The next prime is 66152300491. The reversal of 66152300481 is 18400325166.

It is a happy number.

66152300481 is a `hidden beast` number, since 6 + 615 + 2 + 30 + 0 + 4 + 8 + 1 = 666.

It is not a de Polignac number, because 66152300481 - 2⁵ = 66152300449 is a prime.

It is a super-2 number, since 2×66152300481² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66152300491) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1213080 + ... + 1266438.

It is an arithmetic number, because the mean of its divisors is an integer number (1688043600).

Almost surely, 2^66152300481 is an apocalyptic number.

It is an amenable number.

66152300481 is a deficient number, since it is larger than the sum of its proper divisors (41882489919).

66152300481 is a wasteful number, since it uses less digits than its factorization.

66152300481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53495 (or 53489 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 66152300481 in words is "sixty-six billion, one hundred fifty-two million, three hundred thousand, four hundred eighty-one".