555101601666 has 32 divisors (see below), whose sum is σ = 1114801144128. Its totient is φ = 184267776000.

The previous prime is 555101601653. The next prime is 555101601679. The reversal of 555101601666 is 666106101555.

It is an interprime number because it is at equal distance from previous prime (555101601653) and next prime (555101601679).

It is a super-3 number, since 3×555101601666³ (a number of 36 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10964026 + ... + 11014538.

It is an arithmetic number, because the mean of its divisors is an integer number (34837535754).

Almost surely, 2^555101601666 is an apocalyptic number.

555101601666 is an abundant number, since it is smaller than the sum of its proper divisors (559699542462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

555101601666 is a wasteful number, since it uses less digits than its factorization.

555101601666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58066.

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 555101601666 in words is "five hundred fifty-five billion, one hundred one million, six hundred one thousand, six hundred sixty-six".