3261566264061 has 64 divisors (see below), whose sum is σ = 5431249612800. Its totient is φ = 1698706598400.

The previous prime is 3261566264027. The next prime is 3261566264063. The reversal of 3261566264061 is 1604626651623.

It is not a de Polignac number, because 3261566264061 - 2⁶ = 3261566263997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3261566264061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3261566264063) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2749896 + ... + 3753006.

It is an arithmetic number, because the mean of its divisors is an integer number (84863275200).

Almost surely, 2^{3261566264061} is an apocalyptic number.

It is an amenable number.

3261566264061 is a deficient number, since it is larger than the sum of its proper divisors (2169683348739).

3261566264061 is a wasteful number, since it uses less digits than its factorization.

3261566264061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003450.

The product of its (nonzero) digits is 1866240, while the sum is 48.

The spelling of 3261566264061 in words is "three trillion, two hundred sixty-one billion, five hundred sixty-six million, two hundred sixty-four thousand, sixty-one".