611653440104 has 64 divisors (see below), whose sum is σ = 1329614903040. Its totient is φ = 258356666880.

The previous prime is 611653440071. The next prime is 611653440133. The reversal of 611653440104 is 401044356116.

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, 5591357 + ... + 5699699.

It is an arithmetic number, because the mean of its divisors is an integer number (20775232860).

Almost surely, 2^611653440104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 611653440104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (664807451520).

611653440104 is an abundant number, since it is smaller than the sum of its proper divisors (717961462936).

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

611653440104 is a wasteful number, since it uses less digits than its factorization.

611653440104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109810 (or 109806 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 611653440104 in words is "six hundred eleven billion, six hundred fifty-three million, four hundred forty thousand, one hundred four".