266190156164 has 12 divisors (see below), whose sum is σ = 476666093904. Its totient is φ = 129999843624.

The previous prime is 266190156157. The next prime is 266190156191. The reversal of 266190156164 is 461651091662.

It is a super-2 number, since 2×266190156164² (a number of 24 digits) contains 22 as substring.

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, 773808422 + ... + 773808765.

It is an arithmetic number, because the mean of its divisors is an integer number (39722174492).

Almost surely, 2^266190156164 is an apocalyptic number.

It is an amenable number.

266190156164 is a deficient number, since it is larger than the sum of its proper divisors (210475937740).

266190156164 is a wasteful number, since it uses less digits than its factorization.

266190156164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1547617234 (or 1547617232 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 47.

The spelling of 266190156164 in words is "two hundred sixty-six billion, one hundred ninety million, one hundred fifty-six thousand, one hundred sixty-four".