366606663554 has 4 divisors (see below), whose sum is σ = 549909995334. Its totient is φ = 183303331776.

The previous prime is 366606663547. The next prime is 366606663559. The reversal of 366606663554 is 455366606663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 455366606663 = 188137 ⋅2420399.

It can be written as a sum of positive squares in only one way, i.e., 301033282225 + 65573381329 = 548665^2 + 256073^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 366606663554.

It is not an unprimeable number, because it can be changed into a prime (366606663559) 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 as a sum of consecutive naturals, namely, 91651665887 + ... + 91651665890.

Almost surely, 2^366606663554 is an apocalyptic number.

366606663554 is a deficient number, since it is larger than the sum of its proper divisors (183303331780).

366606663554 is a wasteful number, since it uses less digits than its factorization.

366606663554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183303331779.

The product of its (nonzero) digits is 41990400, while the sum is 56.

The spelling of 366606663554 in words is "three hundred sixty-six billion, six hundred six million, six hundred sixty-three thousand, five hundred fifty-four".