53661336167554 has 8 divisors (see below), whose sum is σ = 80671273749900. Its totient is φ = 26770911584256.

The previous prime is 53661336167531. The next prime is 53661336167557. The reversal of 53661336167554 is 45576163316635.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 53289635000625 + 371701166929 = 7299975^2 + 609673^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 53661336167492 and 53661336167501.

It is not an unprimeable number, because it can be changed into a prime (53661336167557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29878248639 + ... + 29878250434.

Almost surely, 2^{53661336167554} is an apocalyptic number.

53661336167554 is a deficient number, since it is larger than the sum of its proper divisors (27009937582346).

53661336167554 is a wasteful number, since it uses less digits than its factorization.

53661336167554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59756499524.

The product of its digits is 122472000, while the sum is 61.

The spelling of 53661336167554 in words is "fifty-three trillion, six hundred sixty-one billion, three hundred thirty-six million, one hundred sixty-seven thousand, five hundred fifty-four".