100345221545 has 8 divisors (see below), whose sum is σ = 121606486920. Its totient is φ = 79481363200.

The previous prime is 100345221527. The next prime is 100345221593. The reversal of 100345221545 is 545122543001.

It can be written as a sum of positive squares in 4 ways, for example, as 6167432089 + 94177789456 = 78533^2 + 306884^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100345221545 - 2²⁴ = 100328444329 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99351200 + ... + 99352209.

It is an arithmetic number, because the mean of its divisors is an integer number (15200810865).

Almost surely, 2^100345221545 is an apocalyptic number.

It is an amenable number.

100345221545 is a deficient number, since it is larger than the sum of its proper divisors (21261265375).

100345221545 is a wasteful number, since it uses less digits than its factorization.

100345221545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198703515.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 100345221545 its reverse (545122543001), we get a palindrome (645467764546).

The spelling of 100345221545 in words is "one hundred billion, three hundred forty-five million, two hundred twenty-one thousand, five hundred forty-five".