66355241520554 has 8 divisors (see below), whose sum is σ = 113751842606688. Its totient is φ = 28437960651660.

The previous prime is 66355241520541. The next prime is 66355241520643. The reversal of 66355241520554 is 45502514255366.

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

It is a junction number, because it is equal to n+sod(n) for n = 66355241520496 and 66355241520505.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2369830054292 + ... + 2369830054319.

It is an arithmetic number, because the mean of its divisors is an integer number (14218980325836).

Almost surely, 2^{66355241520554} is an apocalyptic number.

66355241520554 is a deficient number, since it is larger than the sum of its proper divisors (47396601086134).

66355241520554 is a wasteful number, since it uses less digits than its factorization.

66355241520554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4739660108620.

The product of its (nonzero) digits is 21600000, while the sum is 53.

The spelling of 66355241520554 in words is "sixty-six trillion, three hundred fifty-five billion, two hundred forty-one million, five hundred twenty thousand, five hundred fifty-four".