2452066617561 has 8 divisors (see below), whose sum is σ = 3566642352864. Its totient is φ = 1486100980320.

The previous prime is 2452066617551. The next prime is 2452066617563. The reversal of 2452066617561 is 1657166602542.

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

It is not a de Polignac number, because 2452066617561 - 2⁵ = 2452066617529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2452066617563) 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, 37152524476 + ... + 37152524541.

It is an arithmetic number, because the mean of its divisors is an integer number (445830294108).

Almost surely, 2^{2452066617561} is an apocalyptic number.

It is an amenable number.

2452066617561 is a deficient number, since it is larger than the sum of its proper divisors (1114575735303).

2452066617561 is a wasteful number, since it uses less digits than its factorization.

2452066617561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74305049031.

The product of its (nonzero) digits is 3628800, while the sum is 51.

The spelling of 2452066617561 in words is "two trillion, four hundred fifty-two billion, sixty-six million, six hundred seventeen thousand, five hundred sixty-one".