2661370904544 has 72 divisors (see below), whose sum is σ = 7678934885160. Its totient is φ = 806476028160.

The previous prime is 2661370904503. The next prime is 2661370904581. The reversal of 2661370904544 is 4454090731662.

2661370904544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114544639 + ... + 114567870.

It is an arithmetic number, because the mean of its divisors is an integer number (106651873405).

Almost surely, 2^{2661370904544} is an apocalyptic number.

2661370904544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2661370904544 is an abundant number, since it is smaller than the sum of its proper divisors (5017563980616).

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

2661370904544 is a wasteful number, since it uses less digits than its factorization.

2661370904544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229112544 (or 229112525 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 51.

The spelling of 2661370904544 in words is "two trillion, six hundred sixty-one billion, three hundred seventy million, nine hundred four thousand, five hundred forty-four".