66021377162 has 8 divisors (see below), whose sum is σ = 106649916996. Its totient is φ = 30471404832.

The previous prime is 66021377129. The next prime is 66021377167. The reversal of 66021377162 is 26177312066.

It can be written as a sum of positive squares in 2 ways, for example, as 53421539161 + 12599838001 = 231131^2 + 112249^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (66021377167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1269641843 + ... + 1269641894.

Almost surely, 2^66021377162 is an apocalyptic number.

66021377162 is a deficient number, since it is larger than the sum of its proper divisors (40628539834).

66021377162 is a wasteful number, since it uses less digits than its factorization.

66021377162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2539283752.

The product of its (nonzero) digits is 127008, while the sum is 41.

The spelling of 66021377162 in words is "sixty-six billion, twenty-one million, three hundred seventy-seven thousand, one hundred sixty-two".