100561550147 has 4 divisors (see below), whose sum is σ = 100648018680. Its totient is φ = 100475081616.

The previous prime is 100561550123. The next prime is 100561550149. The reversal of 100561550147 is 741055165001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 741055165001 = 37 ⋅20028517973.

It is a cyclic number.

It is not a de Polignac number, because 100561550147 - 2³² = 96266582851 is a prime.

It is a super-2 number, since 2×100561550147² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100561550149) 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, 43232522 + ... + 43234847.

It is an arithmetic number, because the mean of its divisors is an integer number (25162004670).

Almost surely, 2^100561550147 is an apocalyptic number.

100561550147 is a deficient number, since it is larger than the sum of its proper divisors (86468533).

100561550147 is an equidigital number, since it uses as much as digits as its factorization.

100561550147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86468532.

The product of its (nonzero) digits is 21000, while the sum is 35.

The spelling of 100561550147 in words is "one hundred billion, five hundred sixty-one million, five hundred fifty thousand, one hundred forty-seven".