451502121056550 has 96 divisors (see below), whose sum is σ = 1120662037351584. Its totient is φ = 120299870208000.

The previous prime is 451502121056527. The next prime is 451502121056617. The reversal of 451502121056550 is 55650121205154.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1100104380 + ... + 1100514720.

It is an arithmetic number, because the mean of its divisors is an integer number (11673562889079).

Almost surely, 2^{451502121056550} is an apocalyptic number.

451502121056550 is an abundant number, since it is smaller than the sum of its proper divisors (669159916295034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

451502121056550 is a wasteful number, since it uses less digits than its factorization.

451502121056550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416474 (or 416469 counting only the distinct ones).

The product of its (nonzero) digits is 300000, while the sum is 42.

The spelling of 451502121056550 in words is "four hundred fifty-one trillion, five hundred two billion, one hundred twenty-one million, fifty-six thousand, five hundred fifty".