266167661510252 has 6 divisors (see below), whose sum is σ = 465793407642948. Its totient is φ = 133083830755124.

The previous prime is 266167661510221. The next prime is 266167661510273. The reversal of 266167661510252 is 252015166761662.

It is a super-2 number, since 2×266167661510252² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33270957688778 + ... + 33270957688785.

It is an arithmetic number, because the mean of its divisors is an integer number (77632234607158).

Almost surely, 2^{266167661510252} is an apocalyptic number.

It is an amenable number.

266167661510252 is a deficient number, since it is larger than the sum of its proper divisors (199625746132696).

266167661510252 is a wasteful number, since it uses less digits than its factorization.

266167661510252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66541915377567 (or 66541915377565 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 56.

The spelling of 266167661510252 in words is "two hundred sixty-six trillion, one hundred sixty-seven billion, six hundred sixty-one million, five hundred ten thousand, two hundred fifty-two".