451455666616551 has 8 divisors (see below), whose sum is σ = 601973902710000. Its totient is φ = 300953937467072.

The previous prime is 451455666616547. The next prime is 451455666616567. The reversal of 451455666616551 is 155616666554154.

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

It is a cyclic number.

It is not a de Polignac number, because 451455666616551 - 2² = 451455666616547 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451455666616511) 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, 4126672176 + ... + 4126781573.

It is an arithmetic number, because the mean of its divisors is an integer number (75246737838750).

Almost surely, 2^{451455666616551} is an apocalyptic number.

451455666616551 is a deficient number, since it is larger than the sum of its proper divisors (150518236093449).

451455666616551 is a wasteful number, since it uses less digits than its factorization.

451455666616551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8253471985.

The product of its digits is 388800000, while the sum is 66.

The spelling of 451455666616551 in words is "four hundred fifty-one trillion, four hundred fifty-five billion, six hundred sixty-six million, six hundred sixteen thousand, five hundred fifty-one".