5661153433251 has 24 divisors (see below), whose sum is σ = 8180156075520. Its totient is φ = 3772748242800.

The previous prime is 5661153433241. The next prime is 5661153433307. The reversal of 5661153433251 is 1523343511665.

5661153433251 is a `hidden beast` number, since 5 + 6 + 61 + 1 + 534 + 3 + 3 + 2 + 51 = 666.

It is not a de Polignac number, because 5661153433251 - 2³¹ = 5659005949603 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5661153433197 and 5661153433206.

It is not an unprimeable number, because it can be changed into a prime (5661153433241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 557249910 + ... + 557260068.

It is an arithmetic number, because the mean of its divisors is an integer number (340839836480).

Almost surely, 2^{5661153433251} is an apocalyptic number.

5661153433251 is a deficient number, since it is larger than the sum of its proper divisors (2519002642269).

5661153433251 is a wasteful number, since it uses less digits than its factorization.

5661153433251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26287 (or 26284 counting only the distinct ones).

The product of its digits is 972000, while the sum is 45.

The spelling of 5661153433251 in words is "five trillion, six hundred sixty-one billion, one hundred fifty-three million, four hundred thirty-three thousand, two hundred fifty-one".