66077672354 has 8 divisors (see below), whose sum is σ = 102534319260. Its totient is φ = 31899565936.

The previous prime is 66077672321. The next prime is 66077672357. The reversal of 66077672354 is 45327677066.

It can be written as a sum of positive squares in 2 ways, for example, as 65215369129 + 862303225 = 255373^2 + 29365^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 66077672296 and 66077672305.

It is not an unprimeable number, because it can be changed into a prime (66077672357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 569635049 + ... + 569635164.

Almost surely, 2^66077672354 is an apocalyptic number.

66077672354 is a deficient number, since it is larger than the sum of its proper divisors (36456646906).

66077672354 is a wasteful number, since it uses less digits than its factorization.

66077672354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139270244.

The product of its (nonzero) digits is 8890560, while the sum is 53.

The spelling of 66077672354 in words is "sixty-six billion, seventy-seven million, six hundred seventy-two thousand, three hundred fifty-four".