105355661545 has 8 divisors (see below), whose sum is σ = 126438882696. Its totient is φ = 84276470016.

The previous prime is 105355661513. The next prime is 105355661639. The reversal of 105355661545 is 545166553501.

It can be written as a sum of positive squares in 4 ways, for example, as 13936510809 + 91419150736 = 118053^2 + 302356^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 105355661545 - 2⁵ = 105355661513 is a prime.

It is a super-2 number, since 2×105355661545² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105355661495 and 105355661504.

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, 949582 + ... + 1054711.

It is an arithmetic number, because the mean of its divisors is an integer number (15804860337).

Almost surely, 2^105355661545 is an apocalyptic number.

It is an amenable number.

105355661545 is a deficient number, since it is larger than the sum of its proper divisors (21083221151).

105355661545 is a wasteful number, since it uses less digits than its factorization.

105355661545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2014811.

The product of its (nonzero) digits is 1350000, while the sum is 46.

The spelling of 105355661545 in words is "one hundred five billion, three hundred fifty-five million, six hundred sixty-one thousand, five hundred forty-five".