66570455151 has 10 divisors (see below), whose sum is σ = 99444754112. Its totient is φ = 44380303380.

The previous prime is 66570455143. The next prime is 66570455153. The reversal of 66570455151 is 15155407566.

It is a happy number.

66570455151 is a `hidden beast` number, since 6 + 65 + 70 + 4 + 5 + 515 + 1 = 666.

It is not a de Polignac number, because 66570455151 - 2³ = 66570455143 is a prime.

It is a super-2 number, since 2×66570455151² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66570455097 and 66570455106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66570455153) 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 9 ways as a sum of consecutive naturals, for example, 410928655 + ... + 410928816.

Almost surely, 2^66570455151 is an apocalyptic number.

66570455151 is a deficient number, since it is larger than the sum of its proper divisors (32874298961).

66570455151 is an equidigital number, since it uses as much as digits as its factorization.

66570455151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821857483 (or 821857474 counting only the distinct ones).

The product of its (nonzero) digits is 630000, while the sum is 45.

The spelling of 66570455151 in words is "sixty-six billion, five hundred seventy million, four hundred fifty-five thousand, one hundred fifty-one".