1661051224110 has 32 divisors (see below), whose sum is σ = 3986564843520. Its totient is φ = 442942336928.

The previous prime is 1661051224069. The next prime is 1661051224121. The reversal of 1661051224110 is 114221501661.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3362371 + ... + 3824609.

It is an arithmetic number, because the mean of its divisors is an integer number (124580151360).

Almost surely, 2^{1661051224110} is an apocalyptic number.

1661051224110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1661051224110 is an abundant number, since it is smaller than the sum of its proper divisors (2325513619410).

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

1661051224110 is a wasteful number, since it uses less digits than its factorization.

1661051224110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582032.

The product of its (nonzero) digits is 2880, while the sum is 30.

Adding to 1661051224110 its reverse (114221501661), we get a palindrome (1775272725771).

The spelling of 1661051224110 in words is "one trillion, six hundred sixty-one billion, fifty-one million, two hundred twenty-four thousand, one hundred ten".