101166815243451 has 32 divisors (see below), whose sum is σ = 139809677341248. Its totient is φ = 65018206310400.

The previous prime is 101166815243353. The next prime is 101166815243453. The reversal of 101166815243451 is 154342518661101.

It is a happy number.

It is not a de Polignac number, because 101166815243451 - 2²⁶ = 101166748134587 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101166815243451.

It is not an unprimeable number, because it can be changed into a prime (101166815243453) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34423801 + ... + 37246901.

It is an arithmetic number, because the mean of its divisors is an integer number (4369052416914).

Almost surely, 2^{101166815243451} is an apocalyptic number.

101166815243451 is a deficient number, since it is larger than the sum of its proper divisors (38642862097797).

101166815243451 is a wasteful number, since it uses less digits than its factorization.

101166815243451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2826111.

The product of its (nonzero) digits is 691200, while the sum is 48.

The spelling of 101166815243451 in words is "one hundred one trillion, one hundred sixty-six billion, eight hundred fifteen million, two hundred forty-three thousand, four hundred fifty-one".