53661374547351 has 8 divisors (see below), whose sum is σ = 71549015441904. Its totient is φ = 35773991675520.

The previous prime is 53661374547331. The next prime is 53661374547353. The reversal of 53661374547351 is 15374547316635.

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

It is not a de Polignac number, because 53661374547351 - 2⁷ = 53661374547223 is a prime.

It is a super-2 number, since 2×53661374547351² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53661374547353) 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, 64019890 + ... + 64852671.

It is an arithmetic number, because the mean of its divisors is an integer number (8943626930238).

Almost surely, 2^{53661374547351} is an apocalyptic number.

53661374547351 is a deficient number, since it is larger than the sum of its proper divisors (17887640894553).

53661374547351 is a wasteful number, since it uses less digits than its factorization.

53661374547351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129011361.

The product of its digits is 95256000, while the sum is 60.

The spelling of 53661374547351 in words is "fifty-three trillion, six hundred sixty-one billion, three hundred seventy-four million, five hundred forty-seven thousand, three hundred fifty-one".