266101603510642 has 16 divisors (see below), whose sum is σ = 422663643168480. Its totient is φ = 125214895960128.

The previous prime is 266101603510637. The next prime is 266101603510663. The reversal of 266101603510642 is 246015306101662.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292916208 + ... + 293823259.

It is an arithmetic number, because the mean of its divisors is an integer number (26416477698030).

Almost surely, 2^{266101603510642} is an apocalyptic number.

266101603510642 is a deficient number, since it is larger than the sum of its proper divisors (156562039657838).

266101603510642 is a wasteful number, since it uses less digits than its factorization.

266101603510642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586752825.

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 266101603510642 in words is "two hundred sixty-six trillion, one hundred one billion, six hundred three million, five hundred ten thousand, six hundred forty-two".