61046045104640 has 160 divisors (see below), whose sum is σ = 153001495848960. Its totient is φ = 23331601612800.

The previous prime is 61046045104613. The next prime is 61046045104699. The reversal of 61046045104640 is 4640154064016.

It is a tau number, because it is divible by the number of its divisors (160).

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, 1400900 + ... + 11137980.

It is an arithmetic number, because the mean of its divisors is an integer number (956259349056).

Almost surely, 2^{61046045104640} 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 61046045104640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76500747924480).

61046045104640 is an abundant number, since it is smaller than the sum of its proper divisors (91955450744320).

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

61046045104640 is an equidigital number, since it uses as much as digits as its factorization.

61046045104640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9737214 (or 9737198 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 41.

Adding to 61046045104640 its reverse (4640154064016), we get a palindrome (65686199168656).

The spelling of 61046045104640 in words is "sixty-one trillion, forty-six billion, forty-five million, one hundred four thousand, six hundred forty".