100666400252231 has 4 divisors (see below), whose sum is σ = 109817891184264. Its totient is φ = 91514909320200.

The previous prime is 100666400252203. The next prime is 100666400252281. The reversal of 100666400252231 is 132252004666001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100666400252231 - 2¹⁴ = 100666400235847 is a prime.

It is a super-2 number, since 2×100666400252231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100666400252281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4575745466000 + ... + 4575745466021.

It is an arithmetic number, because the mean of its divisors is an integer number (27454472796066).

Almost surely, 2^{100666400252231} is an apocalyptic number.

100666400252231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

100666400252231 is a deficient number, since it is larger than the sum of its proper divisors (9151490932033).

100666400252231 is an equidigital number, since it uses as much as digits as its factorization.

100666400252231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9151490932032.

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 100666400252231 in words is "one hundred trillion, six hundred sixty-six billion, four hundred million, two hundred fifty-two thousand, two hundred thirty-one".