101115622645 has 4 divisors (see below), whose sum is σ = 121338747180. Its totient is φ = 80892498112.

The previous prime is 101115622631. The next prime is 101115622691. The reversal of 101115622645 is 546226511101.

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

It can be written as a sum of positive squares in 2 ways, for example, as 25358014564 + 75757608081 = 159242^2 + 275241^2 .

It is a cyclic number.

It is not a de Polignac number, because 101115622645 - 2⁵ = 101115622613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101115622645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10111562260 + ... + 10111562269.

It is an arithmetic number, because the mean of its divisors is an integer number (30334686795).

Almost surely, 2^101115622645 is an apocalyptic number.

It is an amenable number.

101115622645 is a deficient number, since it is larger than the sum of its proper divisors (20223124535).

101115622645 is an equidigital number, since it uses as much as digits as its factorization.

101115622645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20223124534.

The product of its (nonzero) digits is 14400, while the sum is 34.

The spelling of 101115622645 in words is "one hundred one billion, one hundred fifteen million, six hundred twenty-two thousand, six hundred forty-five".