100766552281 has 4 divisors (see below), whose sum is σ = 105147706752. Its totient is φ = 96385397812.

The previous prime is 100766552279. The next prime is 100766552287. The reversal of 100766552281 is 182255667001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 182255667001 = 263 ⋅692987327.

It is a cyclic number.

It is not a de Polignac number, because 100766552281 - 2¹ = 100766552279 is a prime.

It is a super-2 number, since 2×100766552281² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100766552287) 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, 2190577201 + ... + 2190577246.

It is an arithmetic number, because the mean of its divisors is an integer number (26286926688).

Almost surely, 2^100766552281 is an apocalyptic number.

It is an amenable number.

100766552281 is a deficient number, since it is larger than the sum of its proper divisors (4381154471).

100766552281 is an equidigital number, since it uses as much as digits as its factorization.

100766552281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4381154470.

The product of its (nonzero) digits is 201600, while the sum is 43.

The spelling of 100766552281 in words is "one hundred billion, seven hundred sixty-six million, five hundred fifty-two thousand, two hundred eighty-one".