2661525452211 has 8 divisors (see below), whose sum is σ = 3548770127760. Its totient is φ = 1774315539072.

The previous prime is 2661525452197. The next prime is 2661525452213. The reversal of 2661525452211 is 1122545251662.

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

It is not a de Polignac number, because 2661525452211 - 2⁶ = 2661525452147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2661525452213) 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, 8511426 + ... + 8818583.

It is an arithmetic number, because the mean of its divisors is an integer number (443596265970).

Almost surely, 2^{2661525452211} is an apocalyptic number.

2661525452211 is a deficient number, since it is larger than the sum of its proper divisors (887244675549).

2661525452211 is a wasteful number, since it uses less digits than its factorization.

2661525452211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17381205.

The product of its digits is 288000, while the sum is 42.

The spelling of 2661525452211 in words is "two trillion, six hundred sixty-one billion, five hundred twenty-five million, four hundred fifty-two thousand, two hundred eleven".