611221663142 has 8 divisors (see below), whose sum is σ = 965086836600. Its totient is φ = 289526050944.

The previous prime is 611221663121. The next prime is 611221663181. The reversal of 611221663142 is 241366122116.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8042390267 + ... + 8042390342.

It is an arithmetic number, because the mean of its divisors is an integer number (120635854575).

Almost surely, 2^611221663142 is an apocalyptic number.

611221663142 is a deficient number, since it is larger than the sum of its proper divisors (353865173458).

611221663142 is a wasteful number, since it uses less digits than its factorization.

611221663142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16084780630.

The product of its digits is 20736, while the sum is 35.

Adding to 611221663142 its reverse (241366122116), we get a palindrome (852587785258).

The spelling of 611221663142 in words is "six hundred eleven billion, two hundred twenty-one million, six hundred sixty-three thousand, one hundred forty-two".