166000650405553 has 8 divisors (see below), whose sum is σ = 169135400611008. Its totient is φ = 162865998809904.

The previous prime is 166000650405547. The next prime is 166000650405581. The reversal of 166000650405553 is 355504056000661.

166000650405553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 166000650405553 - 2²¹ = 166000648308401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166000650405533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21249451 + ... + 27991792.

It is an arithmetic number, because the mean of its divisors is an integer number (21141925076376).

Almost surely, 2^{166000650405553} is an apocalyptic number.

It is an amenable number.

166000650405553 is a deficient number, since it is larger than the sum of its proper divisors (3134750205455).

166000650405553 is an equidigital number, since it uses as much as digits as its factorization.

166000650405553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49304903.

The product of its (nonzero) digits is 1620000, while the sum is 46.

The spelling of 166000650405553 in words is "one hundred sixty-six trillion, six hundred fifty million, four hundred five thousand, five hundred fifty-three".