105666559570 has 32 divisors (see below), whose sum is σ = 223451524800. Its totient is φ = 35468495040.

The previous prime is 105666559489. The next prime is 105666559571. The reversal of 105666559570 is 75955666501.

It is a super-2 number, since 2×105666559570² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is not an unprimeable number, because it can be changed into a prime (105666559571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36944920 + ... + 36947779.

It is an arithmetic number, because the mean of its divisors is an integer number (6982860150).

Almost surely, 2^105666559570 is an apocalyptic number.

105666559570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105666559570 is an abundant number, since it is smaller than the sum of its proper divisors (117784965230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105666559570 is a wasteful number, since it uses less digits than its factorization.

105666559570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73892730.

The product of its (nonzero) digits is 8505000, while the sum is 55.

The spelling of 105666559570 in words is "one hundred five billion, six hundred sixty-six million, five hundred fifty-nine thousand, five hundred seventy".