42005661106 has 32 divisors (see below), whose sum is σ = 67048197120. Its totient is φ = 19702180800.

The previous prime is 42005661011. The next prime is 42005661121. The reversal of 42005661106 is 60116650024.

It is a super-2 number, since 2×42005661106² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 583051 + ... + 651121.

It is an arithmetic number, because the mean of its divisors is an integer number (2095256160).

Almost surely, 2^42005661106 is an apocalyptic number.

42005661106 is a deficient number, since it is larger than the sum of its proper divisors (25042536014).

42005661106 is a wasteful number, since it uses less digits than its factorization.

42005661106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68410.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 42005661106 in words is "forty-two billion, five million, six hundred sixty-one thousand, one hundred six".