166663563155662 has 8 divisors (see below), whose sum is σ = 249995701095696. Its totient is φ = 83331662790432.

The previous prime is 166663563155629. The next prime is 166663563155693. The reversal of 166663563155662 is 266551365366661.

166663563155662 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 super-2 number, since 2×166663563155662² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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, 57629418 + ... + 60452269.

It is an arithmetic number, because the mean of its divisors is an integer number (31249462636962).

Almost surely, 2^{166663563155662} is an apocalyptic number.

166663563155662 is a deficient number, since it is larger than the sum of its proper divisors (83332137940034).

166663563155662 is a wasteful number, since it uses less digits than its factorization.

166663563155662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118787402.

The product of its digits is 629856000, while the sum is 67.

The spelling of 166663563155662 in words is "one hundred sixty-six trillion, six hundred sixty-three billion, five hundred sixty-three million, one hundred fifty-five thousand, six hundred sixty-two".