2661763641103 has 16 divisors (see below), whose sum is σ = 3174661587456. Its totient is φ = 2182051222560.

The previous prime is 2661763641101. The next prime is 2661763641109. The reversal of 2661763641103 is 3011463671662.

It is a cyclic number.

It is not a de Polignac number, because 2661763641103 - 2¹ = 2661763641101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2661763641101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 337825 + ... + 2331877.

It is an arithmetic number, because the mean of its divisors is an integer number (198416349216).

Almost surely, 2^{2661763641103} is an apocalyptic number.

2661763641103 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2661763641103 is a deficient number, since it is larger than the sum of its proper divisors (512897946353).

2661763641103 is a wasteful number, since it uses less digits than its factorization.

2661763641103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002374.

The product of its (nonzero) digits is 653184, while the sum is 46.

The spelling of 2661763641103 in words is "two trillion, six hundred sixty-one billion, seven hundred sixty-three million, six hundred forty-one thousand, one hundred three".