2661504522063 has 8 divisors (see below), whose sum is σ = 3548971780608. Its totient is φ = 1774186805784.

The previous prime is 2661504522007. The next prime is 2661504522067. The reversal of 2661504522063 is 3602254051662.

2661504522063 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2661504522063 - 2¹⁴ = 2661504505679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2661504522067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37344031 + ... + 37415232.

It is an arithmetic number, because the mean of its divisors is an integer number (443621472576).

Almost surely, 2^{2661504522063} is an apocalyptic number.

2661504522063 is a deficient number, since it is larger than the sum of its proper divisors (887467258545).

2661504522063 is a wasteful number, since it uses less digits than its factorization.

2661504522063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74771133.

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 2661504522063 in words is "two trillion, six hundred sixty-one billion, five hundred four million, five hundred twenty-two thousand, sixty-three".